NEET Physics Alternating Current Questions Solved


An ac source of angular frequency ω 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 ω/3 (but maintaining the same voltage), the current in then circuit is found to be halved. Calculate the ratio of reactance to resistance at the original frequency ω 

(1) 35

(2) 25

(3) 15

(4) 45

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