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An a.c. generator consists of a coil of ...

An a.c. generator consists of a coil of 50 turns and area `2.5 m^(2)` rotating att an angular speed of `60 rad s^(-1)` in a uniform magnetic field B = 0.3 T between two fixed pole pieces. The resistance of the circuit including that of coil is `500 Omega`. Find (i) the max. current drawn from the generator.
(ii) What will be the orientaiton of the coil w.r.t. the magnetic field to have (a) maximum (b) zero magnetic flux ?
(iii) Would the generator work if the coil were stationary and instead, the pole pieces rotated together with the same speed as above ?

A

`2 A`

B

`4 A`

C

`4.5 A`

D

`3 A`

Text Solution

Verified by Experts

The correct Answer is:
C
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