Articles on Dc Motor



Working Principle of DC Motor

Basically, there is no constructional difference between a d.c. generator and a d.c. motor. Infact the same d.c. machine can be used as a generator.....


Back E.M.F of DC Motor and Equation

When the armature of a d.c. motor rotates, the conductors also rotate in the magnetic field. According to the Faraday's Laws of Electro-Magnetic Induction.....


Torque Equation of a DC Motor

Torque of a DC Motor is know as Torque or moment or moment of force is the tendency of a force to rotate an object about an axis.....


Characteristic of DC Compound Motor

The compound motor can be of two types, namely, the cumulative compound motor and differential compound motor.....


Necessity of DC Motor Starters

When a dc motor is started with full-voltage applied across its armature terminals it will, during the starting period, draw much more current than.....


Speed Control of DC Motors (shunt , series)

Industrial as well as domestic loads needs speed variation. Some of the loads require to change the speed in steps and some of the motors.....


Speed Control of DC Series Motor - Flux & Rheostatic Control

In a dc motor, speed will depends on armature current and field voltage. So to control dc motor  speed, field voltage or armature current should be.....




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