A  resistor Is Connected To 220 V-50 Hz A.c. Supply. Find rms value Of Current In The Circuit And The Net Power Consumed For A Complete Cycle.

In and A.C. circuit , minimum voltage of 423 Volt. Its effective voltage is

The  average power  dissipation in a pure capacitor in A.C. circuit is

A 100-turn rectangular coil of size 0.20 m × 0.10 m rotates in a magnetic field of 0.003 Wb m^–2 with a frequency of 1200 rpm about an axis normal to the field. Find the maximum value of the induced emf. 

An a.c. generator consisting of a coil of 100 turns and cross-sectional area of 3 m² is rotating at a constant angular speed of 60 rad s^–1 in a uniform magnetic field of 0.04 T. The resistance of the coil is 500 . Calculate maximum current drawn from the generator, and power dissipation in the coil. From where does the power come? 

An a.c. generator consists of a coil of 50 turns and area 2.5 m² rotating at an angular speed of 60 rad s^–1 in a uniform magnetic field of 0.30 T. The resistance of the circuit including that of the coil is 500 . Find the maximum current drawn from the generator.    

In a dynamo, a coil of area 0.2 m² and having 100 turns rotates in a magnetic field of 0.1 Wb m^–2 with an angular velocity of 100 rad s^–1. The output terminals are connected through a resistance of . Calculate the torque , as a function of time t, required to keep the coil rotating.

The electric main in a house is marked 220V-50Hz. Write down the equation for instantaneous voltage.

A sinusoidal voltage V = 200 sin 314t is applied to a  resistor. Find the frequency of the supply.

In an a.c. circuit the peak voltage of supply is 300 V. What is rms voltage? What is mean voltage during a positive half-cycle and for a complete cycle?

A 220 V-50 Hz a.c. supply is applied to a 44-mH inductor. What is rmscurrent in the circuit? What is the net power absorbed over a complete cycle?