Circuits with Resistors and Inductors
AP Physics C Electricity and Magnetism · Flashcards
AP PHYSICS C ELECTRICITY AND MAGNETISM · FLASHCARDS
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QUESTION
Calculate energy stored in an inductor with
L
=
4
H
L=4\,H
L
=
4
H
and
I
=
2
A
I=2\,A
I
=
2
A
.
QUESTION
If resistance
R
R
R
doubles in an LR circuit, what happens to the time constant
τ
\tau
τ
?
QUESTION
What is the energy stored in an inductor
L
L
L
with current
I
I
I
?
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ANSWER
1
2
L
I
2
\frac{1}{2}LI^2
2
1
L
I
2
. Magnetic field energy in inductor.
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