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Self-inductance of a solenoid depend on-...

Self-inductance of a solenoid depend on-

A

the number of turns N of the coil

B

the area of cross-section A and length l of the coil.

C

the permeability of the core of the coil

D

all the above

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The correct Answer is:
D
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Assertion : The self-inductionce of a long solenoid is proportional to the area of corss-section and length of the solenoid. Reason : Self inductance of a solenoid is independent of the number of truns per unit length.

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RESONANCE-ELECTROMAGNETIC INDUCTION-Exercise
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  18. Lenz's law gives:

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