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Assertion (A) : In a series LCR a.c. circuit resonance can take place when inductive and capacitive reactances are equal. Reason (R) : Sharpness of resonance increases if resistance presence in LCR resonance circuit is reduced.

Answer»

If both assertion and reason are true and the reason is the CORRECT explanation of the assertion.
If both assertion and renson are true but reason is not the correct explanation of the assertion.
If assertion is true but reason is false.
If the assertion is false but reason is true.

Solution :If `X_(L) =X_(C)`, IMPEDANCE Z =R and circuit CURRENT l is maximum. HENCE, RESONANCE takes place.


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