4) The power dissipation of a pure inductor is :

very low

zero

very high

lesser than unity

Answer is:

zero

Explanation:

Power is dissipated only in the Resistor. Capacitor and Inductor only stores energy. So the power dissipation of a pure inductor is Zero.

voltage leads the current

voltage and current remain in phase

voltage lags behind the current

voltage drop is equal to I X Z

Answer is:

Explanation:

On passing A.C. through an inductor voltage leads the current.

decreases

remains unchanged

increases

becomes zero

Answer is:

Explanation:

The magnitude of inductance increases with an increase in the frequency.

zero

0.5

0.8

Answer is:

Explanation:

For the purely resistive circuit, the power factor is 1 (perfect), because the reactive power equals zero.

maximum value

average value

effective value

peak-to-peak value

Answer is:

Explanation:

The difference between peak positive and peak negative values of an A.C. voltage is called as peak-to-peak value.