... Fig. P7.88 is used to close the
switch between a and b for a predetermined length
of time. The electric relay holds its contact arms
down as long as the voltage across the relay coil
exceeds
... SI
Quantity
Frequency
Force
Energy or work
Power
Electric charge
Electric potential
Electric resistance
Electric conductance
Electric capacitance
Magnetic flux
Inductance
Unit Name ... concept of electric charge is the basis for describing all electrical phe-
nomena. Let's review some important characteristics of electric charge.
• The charge is bipolar, meaning th...
... reminder that capacitance
occurs whenever electrical conductors are separated by a dielectric, or
insulating, material. This condition implies that electric charge is not
transported through ... voltage to the
terminals of the capacitor cannot move a charge through the dielectric, it
can displace a charge within the dielectric. As the voltage varies with
time,
the displacement of cha...
... for several
reasons.
First, the gen-
eration, transmission, distribution, and consumption of electric
energy occur under essentially sinusoidal steady-state conditions.
Second, an understanding ... nonsinusoidal sources.
Third, steady-state sinusoidal behavior often simplifies the design
of electrical systems. Thus a designer can spell out specifications in
terms of a desired steady-...
... resonant filter. A much greater selection of amplifying filters is found
among the active filter circuits, the subject of Chapter 15.
14.2 Low-Pass Filters
Here, we examine two circuits that ...
that divides the passband and the stopband. The definition for cutoff fre-
quency widely used by electrical engineers is the frequency for which the
transfer function magnitude is decreased by...
...
1
You may be more familiar with the notation i = y/^. In electrical engineering, / is used
as the svmbol for current, and hence in electrical engineering literature,/ is used to denote
724
...
www.pearsonhighered.com
ISBN-13:
978-0-13-611499-4
ISBN-10:0-13-611499-7
To Anna
ELECTRIC CIRCUITS
NINTH EDITION
James W. Nilsson
Professor
Emeritus
Iowa
State University
Susan A. Riedel ... Toronto
Delhi Mexico City Sao Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo
ELECTRIC CIRCUITS
NINTH EDITION