Statement I: In a series L C R circuit at resonance condition, power consumed by the circuit is maximum. Statement II: At resonance condition, effective resistance of circuit is maximum.

Question

Statement I: In a series L C R circuit at resonance condition, power consumed by the circuit is maximum. Statement II: At resonance condition, effective resistance of circuit is maximum. (A) If both statements are true and statement II is the correct explanation of statement I. (B) If both statements are true but statement II is not the correct explanation of statement I. (C) If statement I is true but statement II is false. (D) If both statements are false.

Tardigrade Admin · Accepted Answer

P av =(V I cos φ/2) At resonance condition, cos φ=1 But Z=R Which is minimum.

Q. Statement I: In a series $L CR$ circuit at resonance condition, power consumed by the circuit is maximum.
Statement II: At resonance condition, effective resistance of circuit is maximum.

If both statements are true and statement II is the correct explanation of statement $I$ .

If both statements are true but statement II is not the correct explanation of statement $I$ .

If statement $I$ is true but statement II is false.

If both statements are false.

$P_{a v} = \frac{V I c o s ϕ}{2}$
At resonance condition, $cos ϕ = 1$
But $Z = R$
Which is minimum.

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

If both statements are true and statement II is the correct explanation of statement I.

If both statements are true but statement II is not the correct explanation of statement I.

If statement I is true but statement II is false.