First slide

Electrical Resonance series circuit

Question

Statement 1: In a series LCR circuit at resonance condition, power consumed by the circuit is maximum.
Statement 2: At resonance condition, effective resistance of circuit is maximum.

Easy

A

Both statements 1 and 2 are correct
B

Statement 1 is correct statement 2 is incorrect
C

Statement 1 is incorrect statement 2 is correct
D

Both statements 1 and 2 are incorrect

Solution

$P_{av} = \frac{VIcosϕ}{2}$
At resonance condition, $cosϕ = 1$
But Z = R
Which is minimum.

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