Difference between generator and motor:

Difference between generator and motor:

A generator converts mechanical energy into electrical energy while a motor does opposite – it converts electrical energy into mechanical energy. Both devices work because of electromagnetic induction, which is when a voltage is induced by a changing magnetic field.

 Construction:

The fundamental basis of construction for both a generator and motor is Faraday’s law of Induction. (Faraday’s Law of Induction: The induced electromotive force in any closed circuit is equal to the negative of the time rate of change of the magnetic flux enclosed by the circuit. Source: Wikipedia).

Generators and motor both have current carrying loops which are rotated in a magnetic field. The loops are wrapped around an armature. An Armature is made up of iron core hence here the magnetic field becomes pretty strong. The direction of the current in the loops is then reversed resulting in movement. This motion creates what is called EMF or electromotive force. Hence converting one form of energy into another. In this case mechanical energy to electrical and vice-versa.

                    

Now see what is the difference between generator and motor:

GENERATOR	MOTOR
Mechanical energy is utilized to cause motion in the loops.	Electrical energy is utilized to cause the motion in loops.
EMF generated is sine wave varying with time.	Induction is used in this case.
The direction of the current produced is governed by fleming’s right-hand rule*	The direction of the current produced is governed by Fleming’s left-hand rule
A shaft and rotor mechanism is used which is driven by mechanical power.	Here the mechanical force is generated by the movement of the shaft due to interactions between the field and the armature
Armature winding is the point from where the electric current is emitted	Here the electricity is supplied to the armature winding, which results in the operation of the motor
A generator owing to its operational design needs more maintenance.	A motor requires minimal maintenance.
Used for power generation applications	Used for pumping water or other things as the case may be.