The armature of a `DC` motor has `20Omega` resistance. It draws a current of `1.5 A` when run by `200 V DC` supply The value of back emf induced in it will be

The armature of a dc motor has 20 Omega resistance It draws a currrent of 1.5 A when run by a 220 V dc supply The value of the block emf induced in it is .

The armature of dc motor has 20Omega resistance. It draws current of 1.5 ampere when run by 220 volts dc supply. the value of back e.m.f. induced in it will be

The resistance of the armature of an electric motor is 55 ohm. The motor draw a current of 2 A when running at 220 V. What is the back e.m.f ?

The back emf in a DC motor is maximum when,

The back emf in a DC motor is maximum when,

The resistance of the armature of a dc motor is 50 Omega . A power supply of 200 V is connected across it and the current through the armature is 2A. What is back emf ?

When DC motor run at full speed , then induced emf will be

A cell supplies a current of 2 A when it is connected to a 5 Omega resistance and supplies a current of 1.2 A, if it is connected to a resistance of 9 Omega . Find the e.m.f and internal resistance of the cell.

The current in the armature of dc motor is the maximum when the motor is :