Electro Magnetic Induction And Alternating Currents Question 227

Question: If rotational velocity of a dynamo armature is doubled, then induced e.m.f. will become [MP PMT 1991; AIIMS 2000]

Options:

A) Half

B) Two times

C) Four times

D) Unchanged

Show Answer

Answer:

Correct Answer: B

Solution:

$ e\propto \omega $



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