The current in a solenoid is decreased to one-half of its original value.Which one of the following statements is true concerning the self-inductance of the solenoid?
A)The self-inductance does not change.
B)The self-inductance increases by a factor of two.
C)The self-inductance decreases by a factor of two.
D)The self-inductance increases by a factor of four.
E)The self-inductance decreases by a factor of four.

Question

Quizplus · Accepted Answer

The self-inductance of a solenoid depends on its physical properties (number of turns per unit length, cross-sectional area, and the permeability of the core material) and not on the current flowing through it.

The Current in a Solenoid Is Decreased to One-Half of Its