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A coil of 1000 turns each of area 1.2m^(...

A coil of 1000 turns each of area `1.2m^(2)` is rotating about an axis in its plane and perpendicular to uniform magnetic field of induction `2xx10^(-3)T`. If it performs 300 rpm. The peak value of induced emf is

A

65.4 V

B

25.4 V

C

70.4 V

D

75.4 V

Text Solution

Verified by Experts

The correct Answer is:
D
`e_(0)=nAB2pif`
`=(100xx1.2xx2xx10^(-3)xx2xx3.14xx300)/(60)`
`=75.4V`
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Knowledge Check

  • A coil having 50 turns and an area of 800 cm^(2) is held with its plane perpendicular to uniform magnetic field of induction 5xx10^(-5)Wb//m^(2) . If it is pulled out of the field in 2 second, then the emf induced in the coil will be

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