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An inductance of 0.4 Henry and a resistance of 100 ohm are connected to a A.C. voltage source of 220 V and 50 Hz. Then find out the phase difference between the voltage and current flowing in the circuit :
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Important Questions on Alternating Current
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A capacitor of capacitance and resistance of is connected in series with AC supply of . The current leads the voltage by-
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If the current through an inductor of inductance is given by , then the voltage across the inductor will be:-
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There is a resistance in an A.C., circuit. Inductance of 0.1 H is connected with it in series. If equation of A.C. e.m.f. is 5 sin 50 t then the phase difference between current and e.m.f. is :-
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resistance and inductance are connected in series with an A.C. circuit. The frequency of the source is . Then phase difference in between and will be:
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In showing figure find .
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An inductance of a condenser of and a resistance of are connected in series. The reactance of inductor and condensers are same. The reactance of either of them will be
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A circuit contains R, L and C connected in series with an A. C. source. The values of the reactances for inductor and capacitor are and respectively and the impedance of the circuit is Z1. What happens to the impedance of the same circuit if the values of the reactances are interchanged:-
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An alternating voltage is connected in series with a resistance and an inductance . If the potential drop across the resistance is and across the inductance is , the applied voltage:
