NEET UG PHYSICS MCQ: ALTERNATING CURRENT

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Analyzing +4 | -1

An ac source of angular frequency ω is fed across a resistor r and a capctior C in series. The current registered is

I

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

View answer and explanation

Correct option: A

\sqrt {\frac{3}{5}}

Option A (

\sqrt{\frac{3}{5}}

) is correct because it is derived from the impedance calculations at two different frequencies, using the given current relationship.

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