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Physics
Physics
Problem
A generator has 200 turns, each of area
2.5
×
10
−
2
m
2
2.5\times10^{-2}\,\text{m}^2
2.5
×
1
0
−
2
m
2
, and is placed in a uniform magnetic field of
0.20
T
0.20\,\text{T}
0.20
T
. The coil is rotated at
50
revolutions per second
50\,\text{revolutions per second}
50
revolutions per second
. What is the rms value of the induced emf? a)
157
V
157\,\text{V}
157
V
b)
314
V
314\,\text{V}
314
V
c)
222
V
222\,\text{V}
222
V
d)
111
V
111\,\text{V}
111
V
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