21. All the rules and laws of D.C. circuit also apply to A.C. circuit containing
22. The equation of 50 Hz current sine wave having r.m.s. value of 60 A is
23. In a pure inductive circuit if the supply frequency is reduced to $$\frac{1}{2},\,$$ the current will
24. In a pure capacitive circuit if the supply frequency is reduced to $$\frac{1}{2},\,$$ the current will
25. A sine wave has a frequency of 50 Hz. Its angular frequency is __________ radian/second.
26. Skin effect occurs when a conductor carries current at _________ frequencies.
27. In a parallel R-C circuit, the current always _________the applied voltage
28. A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to
29. Time constant of a capacitive circuit
30. Capacitive reactance is more when
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