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  • If the number of turns per unit length of a coil of solenoids is doubled, the self-inductance of the solenoids will:Option: 1 remain uncharged</d

If the number of turns per unit length of a coil of solenoids is doubled, the self-inductance of the solenoids will:

Option: 1

remain uncharged


Option: 2

be halved


Option: 3

be doubled


Option: 4

become four times


Answers (1)

best_answer

Self inductance of a solenoid \mathrm{=\mu_0 \mathrm{n}^2 \mathrm{Al}}

Where n is the number of turns per length.

\mathrm{\therefore } Self inductance is directly proportional to  \mathrm{n^{2}}. Self inductance

becomes 4 times when n is doubled.

Posted by

mansi

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