Electromagnetic Field Theory
A coil of 300 turns is wound on a non-magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The current of 3 A will be

 37.68 mH.
 113.04 µH.
 113.04 mH.
 37.68 µH.

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Electromagnetic Field Theory
The effective reactance of an inductive coil

 increases because of stray capacitance as the frequency increases.
 none of these.
 remains same irrespective of the frequency.
 decreases because of stray capacitance as the frequency increases.

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