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CGP EDU Academic Team
Published on: August 13, 2026
An ac source of angular frequency 
is fed across a resistor R and a capacitor C in series. The current registered is I. If now the frequency of source is changed to 
(but maintaining the same voltage), the current in the circuit is found to be halved. The ratio of reactance to resistance at the original frequency ω is
Text Solution
Verified by ExpertsThe correct answer is:
0.77
(0.77)
At angular frequency ω, the current in RC circuit is given by
…….(i)
…….(ii)
From equation (i) and (ii) we get
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