An electric motor takes 5 A form a 220 V line. Determine the power of the motor and the energy consumed in 2 h.

An electric motor takes 5A form a 220 V line. Determine the power of the motor and the energy consumed in 2 hours

An electric motor takes 5A from a 220 V line. Calculate the energy consumed by it in 30 seconds.

An electric motor converts one form of energy to another .Name these forms.

The back e.m.f. of a d.c. motor delivering 5 kW of mechanical power is 200 v, when operating on a 220 V line. Determine the armatre current and the motor resistsance.

A small d.c. motor operating at 200 V draws a current of 5.0 A at its full speed of 3,000 r.p.m. The resistance of the armature of the motor is 8.5 Omega. Determine the back e.m.f. of the motor. Obtain the power input, power output (mechanical) and the efficiency of the motor.

An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the power consumed will be -