Induced Currents and Magnetic Forces
AP Physics C Electricity and Magnetism · Flashcards · Application
AP PHYSICS C ELECTRICITY AND MAGNETISM · FLASHCARDS
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QUESTION
Calculate magnetic force:
I
=
3
A
I = 3 \text{ A}
I
=
3
A
,
L
=
2
m
L = 2 \text{ m}
L
=
2
m
,
B
=
1
T
B = 1 \text{ T}
B
=
1
T
,
θ
=
90
o
\theta = 90^\text{o}
θ
=
9
0
o
.
QUESTION
Calculate Lorentz force:
q
=
1
C
q = 1 \text{ C}
q
=
1
C
,
E
=
5
N/C
E = 5 \text{ N/C}
E
=
5
N/C
,
v
=
2
m/s
v = 2 \text{ m/s}
v
=
2
m/s
,
B
=
3
T
B = 3 \text{ T}
B
=
3
T
,
θ
=
90
o
\theta = 90^\text{o}
θ
=
9
0
o
.
QUESTION
Calculate torque:
n
=
2
n = 2
n
=
2
,
I
=
1
A
I = 1 \text{ A}
I
=
1
A
,
A
=
0.1
m
2
A = 0.1 \text{ m}^2
A
=
0.1
m
2
,
B
=
0.5
T
B = 0.5 \text{ T}
B
=
0.5
T
,
θ
=
90
o
\theta = 90^\text{o}
θ
=
9
0
o
.
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ANSWER
τ
=
0.1
Nm
\tau = 0.1 \text{ Nm}
τ
=
0.1
Nm
.
τ
=
2
×
1
×
0.1
×
0.5
×
sin
(
90
°
)
=
0.1
\tau = 2 \times 1 \times 0.1 \times 0.5 \times \sin(90°) = 0.1
τ
=
2
×
1
×
0.1
×
0.5
×
sin
(
90°
)
=
0.1
Nm.
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