If the number of turns is tripled for an inductor of fixed length and fixed cross-sectional area, what happens to its inductance?
A) It stays the same.
B) It triples.
C) It becomes 9 times the original value.
D) It decreases by a factor of 3.
E) It decreases by a factor of 9.

Question

Quizplus · Accepted Answer

The inductance of an inductor is directly proportional to the square of the number of turns (N^2). Therefore, if the number of turns is tripled, the inductance becomes 9 times the original value.

If the Number of Turns Is Tripled for an Inductor