| Assertion (A): At resonance, the current becomes minimum in a series LCR circuit. |
| Reason (R): At resonance, voltage and current are out of phase in a series LCR circuit. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is NOT the correct explanation of A
C) A is true but R is false
D) A is false and R is true
Correct Answer: D
Solution :
| Option [d] is correct. |
| Explanation: At resonance \[{{\operatorname{X}}_{L}}={{X}_{C}}\], so the circuit impedance becomes minimum and resistive and hence the current becomes maximum. So, the assertion is false. |
| At resonance, \[{{\operatorname{X}}_{L}}={{X}_{C}}\], so the circuit impedance becomes resistive. In resistive circuit voltage and current are always in same phase. Hence, reason is also false. |
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