NEET | 2016Magnetic field due to currentHard

Question

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

Options

A.

4 H

B.

3 H

C.

2 H

D.

1 H

Solution

ϕ= Li
1000 ×4×10-3 = L4
1 = L

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