The current in a solenoid is decreased to one-half of itsoriginal value. Which o

Question

The current in a solenoid is decreased to one-half of itsoriginal value. Which one of the following statements is trueconcerning the self-inductance of the solenoid?

a. The self-inductance decreases by afactor of two.
b. The self-inductance increases by afactor of two.
c. The self-inductance increases by afactor of four.
d. The self-inductance decreases by afactor of four.
e. The self-inductance does not change. The current in a solenoid is decreased to one-half of itsoriginal value. Which one of the following statements is trueconcerning the self-inductance of the solenoid? The self-inductance decreases by afactor of two. The self-inductance increases by afactor of two. The self-inductance increases by afactor of four. The self-inductance decreases by afactor of four. The self-inductance does not change.

Explanation / Answer

The self-inductance increases by a factor of two. Because = Li            L= /i

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