Alternating Cur...

A 44mH inductor is connected to a 220V, 50Hz AC supply. Then, the inductive reactance of the inductor is :

In the given circuit $$R$$ in pure resistance and $$X$$ is unknown circuit element. An AC voltage source is applied across $$A$$ and $$C$$. If $${ V }_{ AB }={ V }_{ AC }$$, then $$X$$ is

The frequency of the output signal becomes ________ times by doubling the value of the capacitance in the LC oscillator circuit.

In a series resonant circuit, the AC voltage across resistance R, inductor L and capacitor C are 5 V, 10 V and 10 V respectively. The AC voltage applied to the circuit will be 

The diagram given show the variation of voltage and current in an AC circuit. The circuit contains

The power loss in an AC circuit can be minimized by.

What is the range of the characteristic impedance of a coaxial cable?

A $$220$$V main supply is connected to a resistance of $$100$$k$$\Omega$$. The effective current is?

Which one of the following curves represents variation of current i with frequency f in series LCR circuit?

Consider two series resonant circuits with components $$L_1C_1$$ and $$L_2C_2$$ with same resonant frequency , $$\omega$$.When connected in series, the resonant frequency of the combination is