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An Ac source of volatage V=100 sin 100p...

An Ac source of volatage V=100 sin `100pit` is connected to a resistor of ressistance 20` Omega`The rsm value of current through resistor is , power factor is

A

1

B

0

C

`1/2`

D

non of these

Text Solution

Verified by Experts

(a) `"cos " phi = (R)/(Z) = (R)/(sqrt(R+ (X_(L)-X_(C))^(2))) = (R)/(sqrt(R^(2)+ 0)) = 1`
`rArr cos phi = 1`
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