Electro Magnetic Induction And Alternating Currents Question 425
Question: When a wire loop is rotated in a magnetic field, the direction of induced e.m.f. changes once in each [MP PMT 1991, 04]
Options:
A) $ \frac{1}{4} $ revolution
B) $ \frac{1}{2} $ revolution
C) 1 revolution
D) 2 revolution
Show Answer
Answer:
Correct Answer: B
Solution:
This is the case of periodic EMI
