1.

Assertion Mutual inductance of two coils depends on the distance between the coils and their orientation. Reason It does not depend on the magnetic material filled between the coils.

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If both assertion and reason are true and reason is the corrent explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.

Solution :The MUTUAL inducrtance in case of a medium of ralative permeability `mu_(R)` present is
`M=mu_(r)mu_(0)n_(1)n_(2)pi r_(1)^(2)l`


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