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Physics
Physics
Problem
A wheel with 10 spokes each of length
L
L
L
m is rotated with a uniform angular velocity
ω
\omega
ω
in a plane normal to the magnetic field
B
B
B
. The emf induced between the axle and the rim of the wheel (a)
1
2
N
ω
B
L
2
\frac{1}{2} N\omega BL^2
2
1
N
ω
B
L
2
(b)
1
2
ω
B
L
2
\frac{1}{2} \omega BL^2
2
1
ω
B
L
2
(d)
N
ω
B
L
2
N\omega BL^2
N
ω
B
L
2
(c)
ω
b
L
2
\omega bL^2
ω
b
L
2
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