Q612
When number of turns in a coil is trippled, without any change in the length of coil, its self inductance becomes?
A.
Nine times
AnswerB.
Three times
C.
Six times
D.
One–third
Answer: Option A
Solution
Answer: Option A
Solution:
L = inductance is proportional to the number of turns per unit length. So self inductance becomes three times. if turns in a coil is trippled, self inductance become nine times.