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Question

Assertion (A): In series LCR circuit resonance can take place.

Reason (R): Resonance takes place iff inductive reactance and capacitive reactances are equal with phase difference 180.

A
Both (A) and (R) are true, and (R) is the correct explanation of (A)
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B
Both (A) and (R) are true, but (R) is not the correct explanation of (A)
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C
(A) is true but (R) is false
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D
(A) is false but (R) is true
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Solution

The correct option is A Both (A) and (R) are true, and (R) is the correct explanation of (A)
For resonance condition in LCR circuit,

XL=XC



As we can see, XL and XC are in opposite direction. Hence, phase difference between them is ϕ=180

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, (A) is the correct answer.

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