Inductance affects the direct current flow

Power factor of an inductive circuit is usually improved by connecting capacitor to it in

In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value

For the same peak value which of the following wave will ‘have the highest r.m.s. value ?

Form Factor is the ratio of

The voltage of domestic supply is 220V. This figure represents

Capacitors for power factor correction are rated in

All the rules and laws of D.C. circuit also apply to A.C. circuit containing

A sine wave has a frequency of 50 Hz. Its angular frequency is _______ radian/second

Capacitive reactance is more when

In a highly capacitive circuit the

In a series resonant circuit, the impedance of the circuit is

. If two sinusoids of the same frequency but of different amplitudes and phase angles are subtracted, the resultant is

If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave ?

For a frequency of 200 Hz, the time period will be

The period of a sine wave is _50 milli seconds. Its frequency is

The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes _____ ohms

The square waveform of current has following relation between r.m.s. value and average value

The period of a wave is

Pure inductive circuit takes power from the A.C. line when