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 $
