what is the principle of an electric motor
Answers
Principle
it is based on the principle that when a rectangular coil is placed in a magnetic field and current is passed through it, two equal and opposite force act on the coil which rotate it continuously
MORE ABOUT ELECTRIC MOTOR
Definition
It is a rotating device for converting electric energy into mechanical energy
Construction
It consists of rectangular coil , say ABCD ,Which is placed between two magnet of opposite pole the end of a coil are connected with two halves known as split rings ,their is rod placed between split rings is know as axle , two metallic Brushes touch the split ring which are connected with terminal of battery
Working
When current flows in the direction of ABCD then applying left hand rule we found that AB move downward and DC move upward and the coli complete half rotation in anti clock direction now the direction of current changes to DCBA and again applying left hand rule we found that DC move downward and AB move upward and it complete the Rotation
Use
It is use in Fan DVD , Domestic Motor
