| Assertion: No power loss associated with pure capacitor in a.c. circuit. |
| Reason: No current is flowing in this circuit. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: C
Solution :
Assertion is true. When a capacitor is connected to an a.c. circuit, \[{{\varepsilon }_{rms}}={{i}_{rms}}\left( \frac{1}{C\omega } \right)\]where \[\frac{1}{C\omega }\]is the impedance due to capacitive resistance. The power Consumed in this circuit is zero because the phase difference \[\phi \] is between emf and current in a pure capacitance A.C. circuit is. Power factor \[\cos \phi =0\], it is only for D.C. that a current does not flow. Reason is false.
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