PHY2061
R. D. Field
Problems
Chapter 36
Page 1 of 4
Chapter 36 Problems
Problem 1:
A current
I
flows through a resistor with
R=25 k
Ω
, a capacitor with
C=4
milliF
,
and an inductor with
L=7 Henry
as shown in the Figure.
At a time
when
Q=8 milliC
and the current
I=0.2 milliAmps
and is changing at a rate
dI/dt=1.0 A/s
, what is the potential difference
V
B
V
A
(
inVolts
)?
R
I
A
B
L
1
L
2
Problem 2:
A current
I
flows through a resistor with
R = 333
Ω
, and two inductors in
parallel with
L
1
= 2 Henry
and
L
2
= 4 Henry
as shown in the
Figure
.
At a
time when the current
I = 1.0 milliAmps
and is changing at a rate
dI/dt =
1.0 A/s
, what is the potential difference
V
B
V
A
(
in Volts
)?
Problem 3:
What is the magnitude of the uniform magnetic field (
in Tesla
) that contains
as much energy per unit volume as a uniform
3,000 V/m
electric field?
C
R
I
A
B
L
+

Q
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PHY2061
R. D. Field
Problems
Chapter 36
Page 2 of 4
C
R
I
A
B
L
1
+

Q
L
2
Problem 4:
A current
I
flows through a resistor with
R = 2
Ω
, a capacitor with
C = 3
milliF
,
and and two inductors in parallel (
L
1
= 1 milliHenry
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 Spring '08
 FRY
 Physics, Current, Inductance, Energy, Magnetic Field, Inductor

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