zap electricity and magnetism

... 123 Electromagnetism 143 Capacitance and Inductance 167 Contents Electricity and the Atom 1.1 The quest for the atomic force 1.2 Charge, electricity and magnetism 14 15 Charge, 15.—Conservation ... The Light and Matter series of introductory physics textbooks: Newtonian Physics Conservation Laws Vibrations and Waves Electricity and Magnetism Optics The Modern Revolution ... when his three elements (later named gallium, scandium and germanium) were discovered and found to have very nearly the 24 Chapter Electricity and the Atom properties he had predicted One thing...

Ngày tải lên: 19/01/2014, 14:13

... work and study Two events ushered in the interest that blossomed into the arcane realm of electricity and magnetism The first was the publication in London of a book on electricity and magnetism ... VOLTAIC ELECTRICITY, ELECTROCHEMISTRY, AND ELECTROMAGNETISM 34 Galvani's Frog Experiments; Volta and the Voltaic Pile; Evolution of the Battery and Discoveries with Electric Currents; Electromagnetism; ... of electricity than had hitherto been available and made possible new and interesting experiments Von Guericke noted the attraction and repulsion of feathers, the crackling noises and sparks, and...

Ngày tải lên: 07/03/2014, 08:20

Ngày tải lên: 17/03/2014, 13:38

Ngày tải lên: 17/03/2014, 13:38

... Electricity and Magnetism The Light and Matter series of introductory physics textbooks: Newtonian Physics Conservation Laws Vibrations and Waves Electricity and Magnetism Optics ... Optics The Modern Revolution in Physics Electricity and Magnetism Benjamin Crowell www.lightandmatter.com Light and Matter Fullerton, California www.lightandmatter.com © 1999-2002 by Benjamin Crowell ... 157 Contents Contents Preface 13 Electricity and the Atom .15 1.1 The Quest for the Atomic Force 16 1.2 Charge, Electricity and Magnetism 18 1.3 Atoms 22 1.4 Quantization...

Ngày tải lên: 24/04/2014, 16:53

... endeavoured to give an account of the fundamental principles of the Mathematical theory of Electricity and Magnetism and their more important applications, using only simple mathematics With the exception ... science The sealing-wax and the flannel are said to be electri fied, or to with be in a state of electricity ; and repulsions are observed electrification, or to be charged and the region in which ... which the attractions is called the electric field and Negative Positive Electrification If we A and B, coated with gold leaf and silk threads, and let them strike against the suspended by stick...

Ngày tải lên: 04/06/2014, 12:29

... NOTES ON RECENT RESEARCHES IN ELECTRICITY AND MAGNETISM INTENDED AS A SEQUEL TO PROFESSOR CLERK-MAXWELL’S TREATISE ON ELECTRICITY AND MAGNETISM BY J J THOMSON, M.A., F.R.S Hon Sc.D ... read 100◦ C NOTES ON ELECTRICITY AND MAGNETISM CHAPTER I ELECTRIC DISPLACEMENT AND FARADAY TUBES OF FORCE 1.] The influence which the notation and ideas of the fluid theory of electricity have ever ... 82 of Maxwell’s Electricity and Magnetism, these tubes start from places where there is positive and end at places where there is negative electricity, the quantity of positive electricity at...

Ngày tải lên: 28/06/2014, 19:20

... 0.1mm What is the magnitude and direction electrostatic force on each charge ? Electricity and Magnetism 13 1.7) In Fig P1.4, two tiny conducting balls of identical mass m and identical charge q hang ... plate and has magnitude x 106 m/s Will the electron strike one of the plates ? If so which plate and how far horizontally from the left edge will the electron strike ? Electricity and Magnetism ... 1.10 : Electric field of charges (1.5) Electricity and Magnetism 5) The electric field of an electric dipole : an electric dipole consists of two charges + q and –q, of equal magnitude but opposite...

Ngày tải lên: 13/08/2014, 02:21

... capacitor of length L and radii a and b (Fig P2.9) Electricity and Magnetism 27 top view side view Fig P2.9 2.14) The parallel plate capacitor in Fig P2.10 has plate area A = 100 cm2 and plate separation ... r+ ) q q = 4πε o r+ 4πε o r− 4πε o r+ r− Fig 2.4 (2.11) Fig 2.5 Electricity and Magnetism 21 If r >> d then r- - r+ ≈ dcos(θ) and r-r+ ≈ r2 (2.11) can be approximated by V= p cos(θ) (2.12) 4πεo ... from one end of the rod as shown Fig P2.1 Electricity and Magnetism 25 2.4) Determine an expression for the potential difference between two points A and B in Fig P2.2 Suppose that the electric...

Ngày tải lên: 13/08/2014, 02:21

... x 10-19 C Electricity and Magnetism ⇒ 3.3 vd = - 32 J = -4.9x10-7 m/s ne Resistance and Ohm’s Law Ohm’s law R= V i [Ω] (3.7) where V is the potential difference across the conductor and i is the ... 250 750 90 63 46 300 900 95 64 48 100 300 25 Electricity and Magnetism 37 H3.2 Determine the currents i, i1, i2 in Fig H3.2 (e1 and e2 in [V], r1, r2 and R in [Ω]) n e1 e2 r1 r2 R 10 20 15 25 20 ... i1, i2, i Electricity and Magnetism 36 3.10) The capacitor C in Fig P3.7 is initially uncharged At t = 0, the switch K is closed Determine an expression for the potential difference V and the current...

Ngày tải lên: 13/08/2014, 02:21

... Determine a) the magnitude and the direction of the displacement current between the plates b) the magnitude and the direction of the induced magnetic field Electricity and Magnetism 50 Fig P4.12 ... force The Hall potential difference V = Ed When the electric force and the magnetic force are in balance eE = evdB Electricity and Magnetism Where vd is the drift speed : |vd| = 42 i neA A : cross-sectional ... Magnetic Field of a Long Straight Wire (Fig 4.13) Biot-Savart law Electricity and Magnetism µ ids sin(θ) dB = o 4πr ⇒ with r = ⇒ 43 s + R and sin(θ) = sin(π-θ) = B=2 ∞µ ∫0 oi sin(θ) ds = 4πr R s2 +...

Ngày tải lên: 13/08/2014, 02:21

... resistance R, find the magnitude and direction of the current i in the triangle AB = a, BC = b Electricity and Magnetism 56 Fig P5.1 Fig P5.2 5.4) A rectangular coil of N turns and of length a, width b ... Electricity and Magnetism 54 where the integration is taken around the loop It follows from (5.2) and (5.3) that ∫ r r dΦ B Ed s = − dt (5.4) r r ... wire is i = αt, the rectangle has resistance R Find the value and the direction of the induced current in the rectangle Electricity and Magnetism 57 5.9) A rectangular loop of n closely packed turns...

Ngày tải lên: 13/08/2014, 02:21

... i2 n1 Fig 6.8 Electricity and Magnetism 62 Problems 6.1) Consider the circuit in Fig P6.1 with e(t) = 12sin(120πt) V When S1 and S2 are open, i leads e by 30° When S1 is closed and S2 is open, ... two plates is d = 0.1mm a) Find the voltage v and the current i Electricity and Magnetism 63 b) Find the electric field E, the magnetic field B and the displacement current id between the capacitor ... Electricity and Magnetism where ω = 60 R − ( )2 LC 2L 6.2 Alternating current circuit 1) Resitive load : (Fig 6.3) the current i and the voltage e across the resistor...

Ngày tải lên: 13/08/2014, 02:21

... given by the Poynting vector Electricity and Magnetism 69 r r r S= E x B µo (7.25) Fig 7.3 : Electromagnetic wave r The direction of S (and thus of the wave’s travel and the energy transport) is ... ∫ r r ∇xE.dA = surface (7.15) ∫ r r ∂Φ B =E.d s = ∂t closed path ∫ r ∂B r dA ∂t surface Electricity and Magnetism It follows that 67 r r ∂B ∇xE = ∂t ∫ Ampere-Maxwell Law (7.16) r r dΦ E + µoi ... ∇ E - ∇ x ∇ x E (7.18) With J = and ρ = r r s ∂B ∇E = and ∇ x E = ∂t (7.19) We have r r r r ∂B ∂ ∂ 2E ∆E = ∇ x = ∇xB = µ o ε o ∂t ∂t ∂t (7.20) Inserting (7.19) and (7.20) into (7.18) we have the...

Ngày tải lên: 13/08/2014, 02:21

... used to make electricity? magnetic field How can you make an electromagnet stronger? magnetism Electricity and Magnetism In a series circuit, if one bulb burns out, it opens the circuit and the other ... think of life without electricity The electrical energy that powers televisions, lamps, and refrigerators has come a long way We use magnetism to make electricity We can make electricity by sliding ... does not use batteries It makes electricity when you squeeze the handle Many people have made many discoveries about electricity In the 1740s Benjamin Franklin and Ebenezer Kinnersley described...

Ngày tải lên: 13/01/2015, 15:14

... or more simply and clearly A good example of this is the laws that describe electricity and magnetism Scientists once thought that electricity and magnetism were two separate and different things ... discoveries and improved measurements helped a great scientist, James Clerk Maxwell, rewrite the laws that describe how electricity and magnetism work Maxwell realized that electricity and magnetism ... electricity for our TVs, refrigerators, electric lights, and all our many other electrical appliances In 1864 James Clerk Maxwell took all the pieces of the electricity and magnetism puzzle and...

Ngày tải lên: 18/03/2016, 01:09

... Power and the watt 29 Energy and the watt hour 31 Other energy units 33 ac Waves and the hertz 34 Rectification and fluctuating direct current 35 Safety considerations in electrical work 37 Magnetism ... Cells and batteries 118 Kinetic and potential energy 118 Electrochemical energy 118 Primary and secondary cells 119 The Weston standard cell 120 Storage capacity 120 Common dime-store cells and ... Miniature cells and batteries 124 Lead-acid cells and batteries 125 Nickel-cadmium cells and batteries 125 Photovoltaic cells and batteries 127 How large a battery? 128 Quiz 130 Magnetism 134 The...

Ngày tải lên: 16/10/2013, 01:15

... silver Copper and aluminum are also excellent electrical conductors Iron, steel, and various other metals are fair to good conductors of electricity In most electrical circuits and systems, copper ... longer and you can’t see them Electricity can be converted into other radiant-energy forms, such as radio waves, ultraviolet, and X rays This is done by things like radio transmitters, sunlamps, and ... unique kind The science of magnetism is closely related to electricity Magnetic phenomena are of great significance in electronics The oldest and most universal source of magnetism is the flux field...

Ngày tải lên: 13/12/2013, 01:15

... Power and the watt 29 Energy and the watt hour 31 Other energy units 33 ac Waves and the hertz 34 Rectification and fluctuating direct current 35 Safety considerations in electrical work 37 Magnetism ... Cells and batteries 118 Kinetic and potential energy 118 Electrochemical energy 118 Primary and secondary cells 119 The Weston standard cell 120 Storage capacity 120 Common dime-store cells and ... Miniature cells and batteries 124 Lead-acid cells and batteries 125 Nickel-cadmium cells and batteries 125 Photovoltaic cells and batteries 127 How large a battery? 128 Quiz 130 Magnetism 134 The...

Ngày tải lên: 13/12/2013, 01:15