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A coil has inductance of (11)/(5pi)H and...

A coil has inductance of `(11)/(5pi)H` and is joined in series with a resistance of `220Omega`. When an alternating emf of `220V` at `50Hz` is applied to it, then the wattless component of the current in the circuit is

A

`5A`

B

`0.7A`

C

`0.5A`

D

`7A`

Text Solution

Verified by Experts

The correct Answer is:
C
`X_(L)=2pifL=220Omega`

wattless component `=I_(v)sinphi`
`(E_(V))/(Z).(X_(L))/((Z))=(E_(V)X_(L))/(Z^(2))=(1)/(2)A`
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