Question

Name and state the principle of a simple a.c. generator. What is its use?

Answer 1

Hint: Recall the basics of an a.c. generator and the principle of working of an a.c. generator. Also, explain the principle and the uses of the a.c. generator.

Complete step by step answer:
The principle used in a simple a.c. a generator is the principle of electromagnetic induction.
Principle of electromagnetic induction:
The emf is induced in a coil rotating in the magnetic field, as the magnetic flux linked with the coil changes. Hence, the generator generates an electric current due to induced emf.
This simple a.c. The generator is used in malls, factories, houses, etc because the alternating current produced by the a.c. The generator has high transmission power and power generation capability.

Additional Information:
The a.c. generators convert mechanical energy into electrical energy.
The basic principle of electromagnetic induction generates an electric current in the a.c. generators.
In the phenomenon of the electromagnetic induction, when a conductor is placed in a time varying magnetic field, the electromotive force is induced in the generator which results in the generation of the electric current.

Working of the a.c. generator:
The armature in the a.c. the generator rotates with the axis of rotation perpendicular to the magnetic field between the two poles of the strong magnet. Due to these rotations, the flux is produced which is changing continuously. Due to this changing flux, an emf is induced and results in the generation of the alternating electric current.
The a.c. generators are smaller than the d.c. generators.

Note:
The current generated in the a.c. generator is alternating current.
The components of the a.c. generators are magnetic dipole, rotor, stator, armature, field, slip rings, brushes and prime mover.