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A coil has an inductance of 0.7 H and is...

A coil has an inductance of `0.7 H` and is joined in series with a resistance of `220 Omega`. When an alternating e.m.f of `220 V` at 50 c.p.s. is applied to it, then the wattless component of the current in the circuit is

A

`30^(@), 1 A`

B

`45^(@), 0.5 A`

C

`60^(@), 1.5 A`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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DISHA PUBLICATION-ALTERNATING CURRENT -Exercise - 1 : CONCEPT BUILDER (Topic 2: A.C Circuits and Power Factor)
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