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An inductive coil has resistance of 100Ω. When an ac signal of frequency 1000 Hz is fed to the coil, the applied voltage leads the current by 450. What is the inductance of the coil?

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2 mH
3.3 mH
16 mH
5 mH

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detailed solution

Correct option is C

Clearly, XL=Ror  L×2×3.14×1000=100or  L=1002×3.14×1000H=15.9×10-3H=15.9 mH = 16 mH

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