. In a pure inductive circuit

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

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

If two sine waves of the same frequency have a phase difference of JT radians, then

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

The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that

The form factor is the ratio of

In a highly capacitive circuit the

A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to

The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of______degrees

The safest value of current the human body can carry for more than 3 second is

Form Factor is the ratio of

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

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

The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is

Inductance affects the direct current flow

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

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

In an AC. circuit, a low value of kVAR compared with kW indicates

The peak value of a sine wave is 200 V. Its average value is