An AC circuit has a voltage $v(t) = 100\sin(100\pi t)$ and current $i(t) = 5\sin(100\pi t - \pi/3)$. What is the average power dissipated in the circuit?

A pure inductive coil of 30 mH is connected to an AC source of 220 V, 50 Hz. The rms current in the coil is

Using an A.C. Voltmeter the potential difference in the electrical line in a house is read to be 234 volt. If the line frequency is known to be 50 cycles/second, the equation for the line voltage is.

An AC voltage source has a peak value of 100V. What is its RMS value?

The time taken by an alternating current of 50 Hz in reaching from zero to its maximum value will be

A mixer of $100\,\,{\mkern 1mu} \Omega$ resistance is connected to an A.C. source of 200 v and 50 cycles/sec. The value of average potential difference across the mixer will be

An alternating voltage of $E = 200\sqrt 2 \sin (100t)V$ is connected to a condenser of $1\mu F$ through an a.c. ammeter the reading of the ammeter will be.

A full-wave rectified sinusoidal voltage has a peak value of $V_m$. What is its average value?

If ${E_0}$ is the peak emf, ${I_0}$ is the peak current and $\phi$ is the phase difference between them, then the average power dissipation in the circuit is

A choke coil has negligible resistance. The alternating potential drop across it is 220 volt and the current is 5mA. The power consumed is.

When the speed of a dc motor increases the armature current