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Question

A straight solenoid of length 1 m has 5000 turns in the primary and 200 turns in the secondary. If the area of cross section is 4cm2, the mutual inductance will be:

A
503H
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B
503mH
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C
503μH
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D
5.03H
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Solution

The correct option is C 503μH
M=μN1N2Al=4π×107×5000×200×4×1041=503×106H

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