Alternating Cur...

At inductance $$1\ H$$ is connected in series with an $$AC$$ source of $$220\ V$$ and $$50\ Hz$$. The inductive resistance (in ohm) is :

An AC source is connected in parallel with an L-C-R circuit as shown. Let $$\displaystyle { I }_{ S },{ I }_{ L },{ I }_{ C }$$ and $$\displaystyle { I }_{ R }$$ denote the currents through and $$\displaystyle { V }_{ S },{ V }_{ L },{ V }_{ C }$$ and $$\displaystyle { V }_{ R }$$ voltages across the corresponding components. Then :

In an LCR circuit having L$$=8$$H, C$$=0.5\mu F$$ and $$R=100\Omega$$ in series, the resonance frequency rad/s is?

In an $$L-C-R$$ series circuit, the values of $$R, X_{L}$$ and $$X_{C}$$ are $$120\Omega, 180\Omega$$ and $$130\Omega$$, what is the impedance of the circuit?

A series resonant circuit contains $$L = \dfrac{5}{\pi} mH, C = \dfrac{200}{\pi} \mu F$$ and $$R = 100 \mu$$. If a source of emf $$e = 200 sin 1000 \pi t$$ is applied, then the rms current is:

The alternating voltage and current in an electric circuit are respectively given by $$E=100\sin { 100\pi t } ,I=5\sin { 100\pi t } $$. The reactance of the circuit will be :

In non-resonant circuit, what will be the nature of the circuit for frequencies higher than the resonant frequency?

A resistor R, inductor L and a capacitor C are connected in series to an oscillator of frequency v. If the resonant frequency is $$v_r$$, then the current lags behind the voltage, when:

In a circuit, $$L,\ C$$ and $$R$$ are connected in series with an alternating voltage source of frequency $$f$$. The current leads the voltage by $$45^o$$. The value of $$C$$ is :

For the given circuit, the natural frequency is given by :