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A coil of inductance 0.50 H and resistan...

A coil of inductance 0.50 H and resistance `100Omega` is connected to a 240 V, 50Hz ac supply.
what is the time lag between the voltage maximum and current maximum?

Text Solution

Verified by Experts

`tanphi=X_L/R=(2pifL)/R=(2pitimes50times0.5)/100=1.571`
`thereforephi=tan^-1 1.571=57.5^@`
`therefore` Time interval `=T/360timesphi=phi/(360f)`
`=57.5/(360times50)=3.19times10^-3s`
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