Magnetic Fields
AP Physics C Electricity and Magnetism · Flashcards · Application
AP PHYSICS C ELECTRICITY AND MAGNETISM · FLASHCARDS
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QUESTION
Determine the direction of force on a positive charge moving in a magnetic field.
QUESTION
Find magnetic force on a $5m$ wire with
I
=
10
A
I = 10A
I
=
10
A
in
B
=
2
T
B = 2T
B
=
2
T
.
QUESTION
Calculate torque on a loop with
A
=
0.1
m
2
A = 0.1m^2
A
=
0.1
m
2
,
I
=
5
A
I = 5A
I
=
5
A
, in
B
=
0.2
T
B = 0.2T
B
=
0.2
T
.
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ANSWER
τ
=
0.1
N
m
\tau = 0.1Nm
τ
=
0.1
N
m
. Using
τ
=
μ
B
=
I
A
B
\tau = \mu B = IAB
τ
=
μ
B
=
I
A
B
when field perpendicular to loop.
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