A copper disc of radius 0.1 M is rotating about its nature at least Axis with 10 RPS in a uniform magnetic field of 0.1 PVT is trained perpendicular to the field the EMF induced across the radius of the disc is
Answer (1)
17th Dec, 2019
HIi,
The answer for this question will be π/10.
For solving this you can use the formula Ein = 1/2BwR^2
where Ein denotes induced emf, B is the magnetic field, w(omega) denotes angular frequency of disc and R is the radius of disc.
Here, B = 0.1, R = 0.1 and
w(omega) = 10rps = 20 pi radian/sec.
Therefore, Ein = 1/2 × 0.1 × 20π × (0.1)²
= 1/2 × 20π × 0.01 = π/10 V
Hope this helps.
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