A long solenoid has 1000 turns . When a current of 4 A flows through it, the magnetic flux linked with each turn of the solenoid is 4 x 10-3 Wb .The self inductance of the solenoid is :

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4 H

3 H

2 H

1 H

answer is D.

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Detailed Solution

Flux linked with each tum = 4 x 10-3 Wb∴Total flux linked = 1000 [4 x 10-3] Wb= 4 Wbϕtotal=Li=4⇒L=1 H

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