Physics
In an a.c. generator the coil makes n rotations per second. The magnitude of induced emf at any instant t is given by :
- e = i0 sin 2πnt
- e = e0 sin 2πnt
- e = e0 sin 2πn/t
- e = e0 cos 2πnt
Electro-Magnetism
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Answer
e = e0 sin 2πnt
Reason — In an a.c. generator the coil makes n rotations per second. The magnitude of induced emf at any instant is given by e = e0 sin 2πnt
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