What is DC Motor ,Working of DC Motor,Types of Dc Motor,Speed Regulation of Dc Motor, Characteristics & Applications of Shunt Motor,Characteristics & Application of Series Motor,Advantages & Disadvantages of DC Motor,Losses fo DC Motor,Factors Controlling Speed of DC Motor.
Working Principle of DC Motor An electrical motor is a machine which converts electrical energy into mechanical energy( There is no basic difference between DC generator and a DC motor.The DC motor can be used as a DC generator). The working principle of DC motor is based on ,when a current carrying conductor is placed in a magnetic field it experiences a mechanical force whose direction is given by the Fleming's left hand rule and its magnitude is F=BIl newton. Working of DC Motor Fig. Is shown a portion of the muiltipolar DC motor. fig. When the field magnets are exited and we supplied current from the main supply to the armature conductors.\the the armature experience a force which tries to rotate it.Armature conductors under N-pole are assumed to carry current downwards ant the conductors under S-pole carries current upwards.By using Fleming's left hand rule we ca...