Assertion Resonance phenomenon is exhibited by a circuit only if both L and C are present in the circuit. Reason Voltage across L and C cancel each other and the current amplitude is Vm / R, the total source voltage appearing across R causes resonance.

Question

Assertion Resonance phenomenon is exhibited by a circuit only if both L and C are present in the circuit. Reason Voltage across L and C cancel each other and the current amplitude is Vm / R, the total source voltage appearing across R causes resonance. (A) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion. (B) Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion. (C) Assertion is correct but Reason is incorrect. (D) Assertion is incorrect but Reason is correct.

Tardigrade Admin · Accepted Answer

It is important to note that resonance phenomenon is exhibited by a circuit only if both L and C are present in the circuit. Only then do the voltage across L and C cancel each other (both being out of phase) and the current amplitude is Vm / R, the total source voltage appearing across R. This means that we cannot have resonance in a R-L or R-C circuit.

Q. Assertion Resonance phenomenon is exhibited by a circuit only if both L and C are present in the circuit. Reason Voltage across L and C cancel each other and the current amplitude is Vm​/R, the total source voltage appearing across R causes resonance.

Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.

Assertion is correct but Reason is incorrect.

Assertion is incorrect but Reason is correct.

Q. Assertion Resonance phenomenon is exhibited by a circuit only if both $L$ and $C$ are present in the circuit.
Reason Voltage across $L$ and $C$ cancel each other and the current amplitude is $V_{m} / R$ , the total source voltage appearing across $R$ causes resonance.