MHT CET Physics question
If rotational velocity of a dynamo armature is doubled, then induced e.m.f. will become [MP PMT 1991, AIIMS 2000]
Answer: (B)
Solution
The peak e.m.f. is directly proportional to , so doubling
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account