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When an AC source of emf E=E(0)sin(100t)...

When an AC source of emf `E=E_(0)sin(100t)` is connected across a circuit, the phase difference between the emf E and the current I is observed be `pi/4`, as shown in the figure. If the circuit consists possibly only of R-C or R-L in series, which of the following combinations is possible?

A

RC circuit with R ` = 1k Omega and C = 10 mu F `

B

RL circuit with ` R = 1 k Omega and L = 1 mH `

C

RL circuit with ` R = 1 k Omega and L = 10 mH `

D

RC circuit with ` R = 1 k Omega and C = 1 mu F `

Text Solution

Verified by Experts

Since current leads emf, hence circuit will have capacitor and resistor
` X_ c = R rArr (1)/(100 C ) = 10 ^ 3 rArr C = 10 mu F `
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