on tap hk1 -vl11

BÀI TẬP ÔN TẬP HKI     !"# $ %" "&'()*+)*%,-)*./01" "&'2()*+)*34526  7 89:," 1";%+ 1 !"# $ %7<'(0.)*6=0- 1 " >";0.)*6=0- 1 :,?5@ > A6B+0C0:-D E, > /  "2+@FGAH0)4#7# $ %)4(:I+689@6J7A H0)47HK)*LA)*MN,"O@FI 8:,?68945C5)PQN+A>!  "RB9#SM " "+0C/)*+)*T "?+0C/0.U689" 2+VW>"# $ %+X" Y )*+)*27X+@ " :Y Z[P)*+)*2)CX9<XD  2+=5QA6 ##5\)46)CE>#Z"O@]:@0 #7 " Y /=" :Y )*+)*=" ĐỊNH LUẬT OHM CHO CÁC LOẠI ĐOẠN MẠCH 1%)?^"AE 1ZTΩT_  #7ΩT_  ΩT_ 1 1Ω"?E ]./`)*+6a9I" >%)?^"A ξ  ZTΩT_   ΩT_ bΩT_ 1 ΩT_ > Ω";I /689HO")*+6aE] cOAOI !%)?^ c`A>5dHE5C7e5AMB+( Z7Ω"_  >ΩT_ bΩT_ 1  ΩT _ > 1Ω" "MB+I/:+`" ")*+6a)*45OAOI" 1")*45OI79I_ > :,f;g Z$ >hY"iGfM:?)*?5@9+ 5:,+d9AIΩ7GMB+/ed 9A '0:-D  Z _  _ _ 1 _ >  O Bai 6 Cho đoạn mạch như hình vẽ: R 1 = 36 Ω , R 2 = 12 Ω , R 3 =20 Ω , R 4 = 3 Ω . Hai đầu AB ta duy trì hiệu điện thế U = 54V.Tìm cường độ dòng điện qua mỗi điện trở. Chuyên đề 4: %)?^"%`0F0)4AMB+ j   Z7j   >ZI/`0F0)4      Ω" %I_  Ω7_ 1 Ω";I/5(E7 I/EB0C"5(Ek " "?_  MHkE" :"MB-=/MB/`"  %)?^"%`0F0)4AMB+ j  1Z7j  bZI/`0F0)4     #7!Ω"%I_   Ω7_ 1 1Ω" ;I/5(E7I/EB0C" "?MHk/5(EE" :"MB-=/MB/`" 1%AMP`)?^"A:+`b5H 7e5AAMB+j1ZAI#7 Ω" %I_  7lΩ7_  7!Ω76a_  0#7  "mB+I/:+`" :"_ 1 7MB-=/" "MB/e57MBe5" >%AMP`)?^"%`AMB+ j  j 1Z7j 1 nZAI    1 #7!Ω" %I_  1Ω7_  Ω7_ 1  >Ω" "MB+I/:+`" :")*+6a9IE FeI"MB-=/" "Eo  "MBe`" !%AMP`)?^"A`H7 e`AMB+jl7!ZAIΩ" %I_  >#Ω7_ 1  #Ω"E)*+6a_   0p  #7 >"?o 7 )*+6a7'_ o %q " MB/e`" b%AMP`)?^"A`H7 e`AMB+jAIΩ"%I _ 1  7!Ω7_  Ω"E5(Ek>7Ek>Z" "'_  MB+/e`"MB/e`" :"Eo 2c " l%``H7e`A jbZT#7!r7_  >7!rT_ >rTf;gbZ$1hY" Y)*+6a7s<[+M/f" :YMB/:+`E]2" %AMP`)?^"A5A MB+j  j j 1 1ZAI    1 Ω" %I_  _ _ 1 !Ω7_ > #Ω" "MB+I/:+`" :"EFeI" "Eo tV " n%AMP`)?^"%`AMB+ j   7 Z7j  7ZAI  #7>Ω7 #7bΩ" %I_   7>Ω7_ _ 1 >Ω7_ >  Ω" ")*+6aMB-=/ _  _ _ 1 _ >    :"EFeI7Fe`" "Eo %q " #%)?^7e`Aj1Z7#7!u7_   u7 _ _ 1 >u7_ > u" Y)*+6a77E7 :YE]2%"  YMB-=/7/:+`" Bài 11: %AMP`)?^"A `AMB+j ZAIΩ"%I /_  bΩ7_ nΩ7_ 1 Ω" a. )*+6a9EFeI" b. U-=/MBGIeI" c. /`M@#5vMB/`" Bài 12: %AMP`)?^"A `AAIΩ"%I/_  bΩ7 _  Ω7_ 1 1Ω"qa90" a. MB+/`MB/`" b. MBG/EFeI7 )*+6aeI" Bài 13: OdI_  #Ω./+`?6a90 7 HdI_ >Ω./+`?6a90 7!"MB+I/`" Bài 14: OdI_  >Ω./+`?6a90#7!7 HdI_ #Ω./+`?6a90#7 !" MB+I/` Bài 15: OdI_  ./+`AI>Ω?6a9 07 7d-+I_  ΩHE5C_  ?6a9 0"MB+/`I_  " Bài 16: OdI_  !##Ω./+`?E0 o  #7Z7E9_  :II_ ###Ω?E0o #7!Z"MB+/` " Bài 17: OdI_  #Ω./+`AMB+jbZ? MBG-I0t 7!h"EF`I/ `" Bài 18: %A)?^"c`AMBj ZA I#7!Ω"%I_  >7!Ω7_ >Ω7_ 1 1Ω" a. OI"?MHk/5(E7EFeI7MBG /7MB/`" b. OA"?MHk/5(E7EFeI7MBG/ 7MB/`" Bài 19: %A)?^"c`AMBj ZAI #7!Ω"%I_ bΩ7_ 1  Ω";I_  A'93K# Ew";I5(E" a. ;Lk_  7!Ω"?MHk/5(E)*+6aI" MBG/7MB/`" b. ;Lk_  A':,:-?MB'." Bài 20: %A)?^"c`AMBj1Z7AI Ω";fAbZx1h"'/:EG_ : fM:?)*" Bài 21: %A)?^"c`AMBj >Z AIΩ"-:AfA;  g Z$bhY7; g Zx hY7 I_1Ω" a. %:AfM)ED)*+6a:Af" b. MB-=/MB/`" Bài 22: %A)?^"c`AMB E 7 R 1 R 2 R 3 A K R 1 R 2 R 3 E 7 E 7 R 1 R 2 R 3 A R b Đ E 7 Đ 1 Đ 2 R E 7 Đ 1 R E 7 Đ 2 _  _ 1 _ _ >  2 c  % jZAI Ω"-:AfA ;  g Z$ hY7; g Zxl7 hY7:EI_A':E-K #E##Ω" a. ;Lk_ #Ω")*+6a9:Af I"mM+M/:Af" b. ;L?_:,:-f;  M:?)*" Bài 23: %A)?^"c`AMBj1Z"%I _  !Ω";I/5(E75(Ek#717Ek 7 Z"I/`7MB-=/7MB/ `" Bài 24: %A)?^"%I_  bΩ7_ !7!Ω" ;I/5(EAO7I/EB0C" •OOIEkbZ" •OOAEk!7l!Z75(Ek#7!" MB+I/`" Bài 25: %A)?^" c`AMB+j Z7IΩ" _0:EI" a.;Lk_MB0h"'_)PN" MB/`)*459" b.t@Lk_A':-MBG-_00CB" Bài 26: %A)?^" c`AMB+j Z7 I1Ω";I_   Ω"iG_ :d:- a.%MB0CB"MB9" b.%MB-_  0CB"?)*+6AA" Bài 27: %A)?^" c`AMB+j >Z7 IbΩ";I_  >Ω"iG_ :,:- a.%MB0CB"MB/`A" b.%MB-_  0CB" MB9" Bài 28: %A)?^" c`AMB +j Z7IΩ";I_  bΩ7_ 1 >Ω"iG_ :,: -MB-_  0CB"MB9" Bài 29:%)?^ _  _ bΩ7_ 1 1Ω7!Ω7_  #"5(E  k#7b" MB+/`MHk/5(E " Bài 30:%)?^j!Z7_!Ω7 ;  gbZxnhY" a"OI7f;  M:?)*"?MHk/ 5(EI/`" b"OA"5(Ekf; M:? )*"iGf;  MEDMB' N/; " Bài 31:%)?^"c`AMB+jl7Z7I #7>Ω"%I_  _ _ 1 1Ω7_ > bΩ" a")*+6a9IEFeI" b"E]%q" c"EF`MB/`" Bài 32:%)?^"c`AMB+j Z7 IΩ"%I_   Ω7_ >Ω7 _ 1 _ > bΩ7_ !  Ω" a")*+6a9IEF eI"MB-=/" b"E]%q" c"MB/`" Bài 33:%)?^"c`A E 7 V A R 1 R 2 E 7 V A R 1 R 2 K R E 7 E 7 R 1 R 2 E 7 R 1 R 2 E 7 R 1 R 2 R 3 A 1 A 2 R 1 R 2 R 3 E 7 A E 7 A B K Đ 2 Đ 1 R R 1 R 2 R 3 R 4 E 7 C D A B R 1 R 2 R 3 R 4 R 5 E 7 C D A B C D A B E 7 R 1 R 2 R 3 R 4 MB+j Z7I#7Ω"%I _  _  Ω7_ 1 >Ω7_ > >7>Ω" a")*+6a9IEFeI" b"Eo %q 7o  " c"MB-=/MB`" Bài 34:%)?^"c`AI#7Ω" %I_  Ω7_ >Ω7_ 1 1Ω7_ > Ω"iE o 2c 7!Z" a"MB+/`" b")*+6a9IEFeI" MB-=/" Bài 35:%)?^"c`AMB+j >Z7I Ω"%I_   Ω7_ >Ω7_ 1 _ > 1Ω"qa I_  0p   " a"'I_ ! "MB-=/" b"E]%q7EFeI" c"MB/`" Bài 36:%)?^"c`AMB+jbZ7I #7!Ω"%I_  _  Ω7_ 1 _ ! >Ω7 _ > bΩ";I/5(E" a")*+6a9IEFe I" b"?MHk/5(E7MBG/MB `" 1%+AMP`)?17A`AMB+0ybZAI 0 uTII0_  bu7_  u_ 1 >u" Y )*+6ap  9I_  " :Y MB-=UP 1 /I_ 1 " Y /`M@!5v" 6Y MB/` >%+AMP`)?>7AMB+I/`)P N0y  7!7  uTy 17  u"%II0_  bu7_  u_ 1 1bu" Y MB+y : I : /:+`" :Y )*+6ap 1 9I_ 1 " Y Eo 2c ]2cE]./e`" yy    2  y   _   c _ 1  _  _  _  _ 1 g?1Yg?>Y Một số câu hỏi trắc nghiệm và bài tập cần tham khảo: %:s5d.0sH)PpgKp"Ep"!Y)PppgKpp"Epp"nYM:s5s0  R 1 R 2 R 3 R 4 E 7 C D A B R 1 R 2 R 3 R 4 R 5 E 7 C D A B C D A B E 7 R 2 R 4 R 5 R 1 A R 3 7y _  2 _ _ 1 c _ >   7y   7y _  _ _ 1 _ > i:,)4b"R.)P]A:, #7c"?+0C/A"  %AMP`)?^"%:Ey>Z7#7_   u7_ u7_ 1 bu7_ > bu" Y E]2c %AMP`)?^"%:Ey   7>Z7  #7u7y 1Z7 #7 uT_  17!u7_ _ 1 >u7_ >   u"  DỊNG ĐIỆN TRONG CÁC MƠI TRƯỜNG (tiếp) Bài 1.c)*^C66'zmX > "%)*+6a:?580#"*FE @5A^"%:EgzYb!7>S0" Bài 2 .2dHE5:?58:?.66'%mX > $:,%T:?.66'cX 1 $ :,"m70)4`:$/:?0#7b>"H0)4::$/:?M" Bài 3 .;5866'i mX > C.507)*)4<I."cE6a A)*+p :?581b5v?I$L{0: -D Bài 4 .H0)4`)4@5AI$:?58766'`M|"%:EE ./:?0o#ZTU-=I:?0hh" Bài 5 .@*FEUh5@-=)4H0)4### 580 X 1 A@9"iE]./:580o!Z6a966'58A )*+p "# > " Bài 6 "2+:+``#5d6J97e6J9AMH5:,"2e5AMB+1Z7I Ω"2+:?58.66'cX 1 AI_ 7!Ω)4d./:+`A-"$ /:?580:,:"H0)4::$/:?*n#5v" Bài 7 .?58.66'cX 1 C.6)P07AI_ Ω"58?H0)4 .6)P/:?@B l"E./:?58" Bài 8 .;586)P.+H+:?58A.8:F #"mF7E ].0#Z?.8 !"m E5(7E].0 #Z?H0)4/.80: -D Bài 9 .i./:?58N66'%mX > gC.6)P:,`Y)4HAE :,1Z"mb5v!897)*B9H0)4.8U-b7>"I/:?58" Câu 2: Một bình điện phân có anôt bằng bạc, dung dòch điện phân là bạc nitrat, cho A=108; n=1. Cho dòng điện chạy qua bình là 0,1A thì ta thu được khối lượng bạc thoát ra khỏi điện cực là 1,08g. thời gian dòng điện chạy qua bình là: a.2h40ph50s b.2h10ph50s c.2h20ph50s d.2h30ph50s Câu 3: Chiều dày của lớp niken phủ lên tấm kim loại là d=0,05mm, sau khi diện phân trong 30phút. Diện tích mặt phủ của tấm kim loại là 30Cm 2 . Cho niken có khối lượng riêng là D=8,9.10 3 kg/m 3 , nguyên tử khối A=58 và hóa trò n=2. Cường độ dòng điện qua bình điện phân là a.4,27A b.7,24A c.2,47A d.4,72A Câu 4: Hai bình điện phân được mắc nối tiếp trong một mạch điện: Bình thứ nhất chứa dung dòch CuSO 4 với các điện cực bằng đông, bình thứ hai chưa dung dòch AgNO 3 với các điện cực bằng bạc. Khối lượng lớp bạc bám vào catốt của bình điện phân thứ hai là m 2 =41,04g (Cho A Cu =64; n Cu =2; Ag=108; n Ag =1) trong cùng một khoảng thời gian. Khi đó khối lượng m 1 của lớp đồng bám vào catốt của bình điện phân thứ nhất là: a.12,16g b.16,12g c.12,8g d.16,8g 1 R Câu 5: Điện phân dung dòch AgNO 3 với điện cực bằng Ag (Ag = 108 ). Điện lượng qua bình điện phân là 965C . Khối lượng bạc bám vào catôt là bao nhiêu ? a. 1,08g b. 10,8g c. 0,108g d. 0,0108g Câu 6: Một bình điện phân đựng dung dòch CuSO 4 có điện cực bằng Platin có suất phản điện 3,1V, điện trở trong 0,5Ω. Mắc bình điện phân vào nguồn điện có suất điện động 4V điện trở trong 0,1Ω. (Cu = 64), Sau bao lâu thì khối lượng Cu bám vào catôt là 2,4g? a. 9650s b. 4650s c. 5200s d. 4825s Bài 1gY%  1"# $> % $>"# $ %8C@0 1" "R.)P00.v90.{9g@A^?Y" :"+0C0.)P] Bài 2g1Y%)?^  bV ξ ξ = =  r r= = Ω _   Ω T_ b Ω T_ 1 1 Ω _ 1 0:?58A.0:, %66'B580%mX >  "?MHk/5(EE" :"0)4%:%/:?58_ 1 M*" Bài 5:%)? E17!Z7ΩT_  1ΩT_ 1 _ > >Ω" ?58.66'%mX > 7H:,`7AI_ >Ω" iJ9 Y;I)P)P_ 2c /7)*+6a`7 :?58" :YOH0)4`IHM*15v189"%% b>7 " Y%MB/`MB-=I" ĐS :Y_ 2c  ΩTp>7!Tp : 7!T:Y#7#nbTYt j b#7l!hTt c  >#7!h" Bài 3:2+:?58A:,%766'580%mX > " %b>7 "qa:?580 "H0)4`I./:? *b5v!89" Bài 4:c)*^C66'zmX > "%)*+6a:?580#"* FE@5A^"%:E z b!7>S0" Bài 5:c)*58+66'H:,6ap 7!*1 5v#89 )4!7>0A'pI"iG0A0?D Bài 6:2+s0)4:A6m! 76aA)*+p!:?58 *b5v!89"+69/0C5:5/L-/s"A#7A'p7H 0)4-q#7!"# 1 S 1 " Bài 7:2+:+``1#5d1AHE57eAA#5dMM7e5A j#7nZ#7b Ω "2+:?58AI_ 5  #! Ω )4d./:+`A-" H0)4`:/:?* *>#5v!#89"gE:?N66%mX > A .:,%Y" Bài 8:2+:?58N66cX 1 A0:,^7I0 # Ω 7E ./:?0!#Z"iGM1 5v#89H0)4/:0:-D Bài 9:2dHE5:?58:?.66%mX > 0:,`T:?.66cX 1  0:,:"m*0)4`:/:?0#7b>"H0)4::/ :?M"   7r ξ 7r ξ + −  R R  _ _  E7 2 _ 1 _ > c • • Bài 10:H0)4`)4@5AI:?5866'`M|"%:E E./:?0o#ZTU-=I:?0h" Bài 11:i./:?58N66'%mX > gC.6)P0:,`Y)4H AE:,1Z"mb5v!897)*B9H0)4.8U-b7>"I/ :?58" Bài 12:%)?^ EjZ7#7 Ω T_  #7 Ω 7_  Ω 7_ 1 > Ω " ?58.66'%mX > A:,`" ;I/:?0_ : > Ω " ")*+6a9:?58" :"H0)4`)4@5AI*b5v!89" Bài 13: %)?^ EjZ77! Ω " 2`:EI_7f1Z$bh:?58.6 6'cX 1 A.:,7AI_ : b Ω g#S07Y" ;I/5(E689H"F7:EIA'_1 Ω " "?MHk/5(ED :";fM)ED "H0)4:*1 5v#89D 6";fM:?)*?:EI5@A':,:-D Bài 14:% } - } )?^ - ~ j  7!Z7j 1Z7  Ω7  Ω7 _  bΩ7_  Ω7_ : 1bΩ" "• € M8 ~ - }  }  € - } P •  • : }  € D :"• € )P €  } 6 € - }  ~  ~  € ED "H0)4`:M*D 6"• ~ E]2cD Bài 15: % } - } )?^ - ~ j>7!Z7#7!Ω7_  Ω7_ 1 bΩ7fgbZxbhY7 _ >  Ω7_ : >Ωg_ : 0:?58.66%mX > C 0%Y"%:Eb>7 " "MB+I/:+`D :";fM)ED0)4G-:A f*#5vD "H0)4`:*b5v!89D 6"iE]%2A'D j7 _  _ _ 1 ; j7 _ _ : 1 1 ,E r 2 2 ,E r R   • • N M  R _ : _  ; 3 R _ : _ > % q   2 c . Platin có suất phản điện 3,1V, điện trở trong 0,5Ω. Mắc bình điện phân vào nguồn điện có suất điện động 4V điện trở trong 0,1Ω. (Cu = 64), Sau bao lâu thì khối. Chiều dày của lớp niken phủ lên tấm kim loại là d=0,05mm, sau khi diện phân trong 30phút. Diện tích mặt phủ của tấm kim loại là 30Cm 2 . Cho niken có khối