Alternating Cur...

For a series LCR circuit the power loss at resonance is : -

The natural frequency of the circuit shown in fig. is

The capacitance in an oscillatory LC circuit is increased by 1%. The change in inductance required to restore its frequency of oscillation is to

In alternating current

The frequency of A.C mains in India is

An inductor, a resistor and a capacitor are joined in series with an AC source. As the frequency of the source is slightly increased from a very low value, the reactance

The circuit shown in Fig. acts as a 

A steady potential difference of 100 V produces heat at a constant rate in a resistor. The alternating voltage which will produce half the heating effect in the same resister will be

An amplitude modulated (AM) radio operates at $$550 kHz$$ to $$1650 kHz$$. If $$L$$ is fixed and $$C$$ is varied for tuning then minimum and maximum value of $$C$$ is

When $$4\ V$$ DC is connected across an inductor, current is $$0.2\ A$$. When AC of $$4\ V$$ is applied the current is $$0.1\ A$$. Then self inductance of the coil is:
[Given $$\omega = 1000\  rads^{-1}$$]