1.

A current of 25/pi Hz frequency is passing through an A.C. circuit having series combination of R = 100 Omega and L =2 H, the phase difference between voltage and current is …

Answer»

`90^@`
`60^@`
`30^@`
`45^@`

Solution :`tan DELTA=(omegaL)/R=(2pifL)/R=(2pixx25/pixx2)/100`
`THEREFORE tan delta=100/100=1`
`therefore delta =45^@`


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