Alternating Current

Related Questions

• An alternating current is given by the equation $i = {i_1}\cos \omega \,t + {i_2}\sin \omega \,t$. The r.m.s. current is given by

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• Choke coil works on the principle of

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• The peak value of an alternating e.m.f. E is given by $E = {E_0}\cos \omega \,t$ is 10 volts and its frequency is $50 Hz$. At time $t = \frac{1}{{600}}sec$, the instantaneous e.m.f. is

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• In a purely resistive ac circuit, the current

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• A $220$ V, $50$ Hz ac source is connected to an inductance of $0.2$ H and a resistance of $20$ ohm in series. What is the current in the circuit

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