Inductors

Q1: The polarity of induced voltage while a field is collapsing is:

A present only if the force is stationary

B opposite to the force creating it

C identical to the force creating the field

D independent of the force creating it

ANS:B - opposite to the force creating it

"However, when the switch is opened, the coil's inductance responds to the decrease in current by inducing a voltage of reverse polarity, in an effort to maintain current at the same magnitude and in the same direction."



img not found
img

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.