31. The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that
32. A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to
33. In the case of an unsymmetrical alternating current the average value must always be taken over
34. Time constant of an inductive circuit
35. Capacitive susceptance is a measure of
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