Question

what principles of physics is used in the construction of an electric generator?

Answer 1

electro mağnetic induction
hope it helps u

Answer 2

The electric generator is a machine for producing electric current or electricity. The electric generator convert mechanical energy into electrical energy.

Principle of working of an electric generator:

Electric generator is an application of electromagnetic induction.

Electric generator works on the principle that when a straight conductor is moved in a magnetic field, then current is induced in the conductor

In an electric generator a rectangular coil is made to rotate rapidly in the magnetic field between the poles of a horseshoe type magnet. When the coil rotates it cut the magnetic field lines due to which current is produced in the coil .

Electric generators are of two types:

Alternating current generator(A.C generator)

A.C. generators or alternators (as they are usually called) operate on the same fundamental principles of electromagnetic induction as D.C. generators.

Alternating voltage may be generated by rotating a coil in the magnetic field or by rotating a magnetic field within a stationary coil. The value of the voltage generated depends on-



the number of turns in the coil.



strength of the field.



the speed at which the coil or magnetic field rotates.