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  4. Self inductance of coil is L if it is covered with a medium of permeability u, then self inductance becomes

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Q. Self inductance of coil is $ L$ if it is covered with a medium of permeability $u$, then self inductance becomes

Chhattisgarh PMTChhattisgarh PMT 2007

Solution:

If coil of inductance $L$ is covered with a medium of permeability $ \mu , $ then its inductance becomes $ L\mu $ .