Assertion : In series `L-C-R` circuit, voltage will lead the current function for frequency greater than the resonance frequency. Reason : At resonance frequency, phase difference between current function and voltage function is zero.A. If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not the correct explanation of AssertionC. If Assertion is true, but the Reason is false.D. If Assertion is false but the Reason is true.

Assertion : In series `L-C-R` circuit, voltage will lead the current f

1.	Assertion : In series `L-C-R` circuit, voltage will lead the current function for frequency greater than the resonance frequency. Reason : At resonance frequency, phase difference between current function and voltage function is zero.A. If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not the correct explanation of AssertionC. If Assertion is true, but the Reason is false.D. If Assertion is false but the Reason is true.
Answer» Correct Answer - B At resonance frequency `f_r`, `X_C=X_L` Now `X_L=2pifL` or `X_Lpropf` For `fgtf_r,X_LgtX_C` At resonance `X_L=X_Cimplies Z=R` `:. Cosphi=R/Z=1` or `phi=0^(@)`

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