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Self Induction

The coefficie...

Question

The coefficient of self inductance of a solenoid is $0.18$ mH. If a rod of soft iron of relative permeability 900 is inserted in it, then the coefficient of self inductance will become nearly

A

5.4 mH

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B

162 mH

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C

0.006 mH

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D

0.0002 mH

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Solution

The correct option is B
162 mH

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