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Assertion : No power loss associated with pure capacitor in ac circuit. Reason : No current is flowing in this circuit. |
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Answer» If both ASSERTION and reason are true and reason is the CORRECT explanation of assertion Assertion is true. When a capacitor is connected to an a.c. circuit, `epsilon+(rms)=i_(rms)((1)/(C omega))` where `(1)/(C omega)` is the impedance DUE to capacitative resistance. The power consumed in this circuit is zero because the phase difference `phi` between emf and current in a pure capacitance a.c. circuit is `(pi)/(2)`. Power factor cos`phi = 0`. It is only for d.c. that a current does not flow. Reason is false. |
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