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When an AC source of emf E with frequenc...

When an AC source of emf E with frequency `omega` = 100 Hz is connected across a circuit the phase difference between E and current I in the circuit is observed to be `pi/4` as shown in the figure. If the circuit consist of only RC or RL is series , then

A

`R = 1 kOmega, C = 5 muF`

B

`R = 1 kOmega, L = 10 H`

C

`R = 1 kOmega, L = 1 H`

D

`R = 1 kOmega, C = 10 muF`

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