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+1 vote
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in Physics by (49.2k points)
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A solenoid with N loops of wire tightly wrapped around an iron-core is carrying an electric current I. If the current through this solenoid is reduced to half, then what change would you expect in inductance L of the solenoid.

2 Answers

+1 vote
by (15.3k points)
selected by
 
Best answer

Given: I' = \(\frac{I}{2}\)

Inductance, L  = μo \(\frac{N^2}{e}\).A

l : length of solenoid

N: number of lines

A: area of cross- section of solenoid

Since, 'I' is independent of current, so there is no change in the inductance of the solenoid.

+2 votes
by (53.1k points)

Remains same.

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