Magnetism and Current-Carrying Wires
AP Physics 2 · Flashcards
AP PHYSICS 2 · FLASHCARDS
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QUESTION
State the formula for the magnetic field due to a moving point charge.
QUESTION
What is the magnetic force direction on a wire with current in a magnetic field?
QUESTION
Calculate the force between two parallel wires
2
m
2 \text{ m}
2
m
apart carrying
4
A
4 \text{ A}
4
A
each.
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ANSWER
1.6
×
10
−
6
1.6 \times 10^{-6}
1.6
×
1
0
−
6
N. Use force formula with
d
=
2
m
d=2m
d
=
2
m
and
I
1
=
I
2
=
4
A
I_1=I_2=4A
I
1
=
I
2
=
4
A
.
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