Magnetism and Electromagnetism

What is the magnetomotive force in a 75-turn coil of wire when there are 4 A of current through it?

A 18.75 At

B 30 At

C 300 At

D 187 At

ANS:C - 300 At

MMF = T *A. T=75.
A=4.
So, MMF = 75 * 4 = 300AT.

Share :

img not found

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.