Alternating Current

Related Questions

• Same current is flowing in two alternating circuits. The first circuit contains only inductance and the other contains only a capacitor. If the frequency of the e.m.f. of ac is increased, the effect on the value of the current will be

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• In an ac circuit, the instantaneous values of e.m.f. and current are $e = 200 \sin 314 t$ volt and $i = \sin \,\left( {314t + \frac{\pi }{3}} \right)$ ampere. The average power consumed in watt is

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• In a LCR circuit the pd between the terminals of the inductance is $60$ V, between the terminals of the capacitor is $30$ V and that between the terminals of resistance is $40$ V. the supply voltage will be equal to

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• The capacity of a pure capacitor is 1 farad. In dc circuits, its effective resistance will be

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• A sinusoidal ac current flows through a resistor of resistance R. If the peak current is${I_p}$, then the power dissipated is

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