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Magnetism and Electromagnetism - Technical MCQs

Q1:

What is the magnetomotive force in a 150-turn coil of wire with 2 A flowing through it?

A 13.33 mAt

B 300 At

C 75 At

D 152 At

ANS:B - 300 At

Magnetomotive force = Ni ,whrere N - no of turns, I - Current.
hence Fm= 150*2=300