What is the answer for 8th question

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The answer should be 5V of 8th problem.


When RC in series then voltage across R lead voltage across C by 90° ,so voltage supplied by AC source is –

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Current through C leads voltage across it by 90° and current through R is in same phase with voltage across it.see this image

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Are you satisfied with this ??

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Its ok. In fact every one needs explanation so we hvn’t to hesitate to ask our querries.