When current passing through a series connection of 100`Omega` resistance and 2H inductance has frequency `25/pi` Hz, the phase difference between voltage and current is .....

Options

A. `90^@`
B. `60^@`
C. `45^@`
D. `30^@`

Answer

C

Explanation

If `delta` is the phase difference between voltage and current ,
`tan delta = (omegaL)/R=(2pivL)/R` (where v=frequency)
`=(2pixx25/pixx2)/100`
`=100/100`
`tan delta=1`
`therefore delta=45^@`