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Physics
Physics
Problem
Which of the following gives the peak value of the emf induced in a coil of
N
N
N
turns and area
A
A
A
rotating with constant angular speed
ω
\omega
ω
in a uniform magnetic field of magnitude
B
B
B
? a)
ε
0
=
B
A
ω
\varepsilon_0 = B A \omega
ε
0
=
B
A
ω
b)
ε
0
=
N
B
A
ω
2
\varepsilon_0 = \dfrac{N B A \omega}{\sqrt 2}
ε
0
=
2
N
B
A
ω
c)
ε
0
=
N
B
A
ω
\varepsilon_0 = N B A \omega
ε
0
=
N
B
A
ω
d)
ε
0
=
N
B
A
f
\varepsilon_0 = N B A f
ε
0
=
N
B
A
f
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