JEE Main 2021 — Alternating Current Question with Solution
From: JEE Main 2021 (Online) 24th February Evening Shift
Question
A series L-C-R circuit is designed to resonate at an angular frequency 0 = 105 rad/s. The circuit draws 16W power from 120V source at resonance. The value of resistance 'R' in the circuit is _________ .
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Show full solutionCorrect answer: 900
Correct answer
900
Step-by-step explanation
Given, angular frequency at resonance, 0 = 105 rads1
Power drawn from circuit, P = 16 W
and supply voltage, V = 120 V
Let resistance of circuit = R.
As,
Power drawn from circuit, P = 16 W
and supply voltage, V = 120 V
Let resistance of circuit = R.
As,
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