Alternating Current

Related Questions

• An alternating e.m.f. of frequency $v\,\left( { = \frac{1}{{2\pi \sqrt {LC} }}} \right)$ is applied to a series LCR circuit. For this frequency of the applied e.m.f.

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• The average power dissipated in a pure inductor of inductance $L$ when an ac current is passing through it, is (Inductance of the coil L and current I)

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• Power delivered by the source of the circuit becomes maximum, when

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• In LCR circuit, the capacitance is changed from $C$ to $4C$. For the same resonant frequency, the inductance should be changed from $L to

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• A resistance of $300 \Omega$ and an inductance of $\frac{1}{\pi }$ henry are connected in series to a ac voltage of $20$ volts and $200$ Hz frequency. The phase angle between the voltage and current is

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