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Assertion : The self-inductance of a lon...

Assertion : The self-inductance of a long solenoid is proportional to the area of cross-section and length of the solenoid.
Reason : Self inductance of a solenoid is independent of the number of turns per unit length.

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The correct Answer is:
c
The slef inductance ofa long solenoid, the core of which consists of amagnetic of permeability `mu`, is given by `L=mu_(r)mu_(0)n^(2)Al`
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