Question

on what principle an electric motor works question mark define the role used to identify the direction of force on the conductor in an electric motor explain the parts used in a commercial motor​

Answer 1

it .works on the principle that electric energy is converted to mechanical energy

Answer 2

Answer:

An electric motor uses the attraction and repulsion of magnetic fields to produce motion. The simplest is the permanent magnet motor.

Placing a coil of wire inside a permanent magnetic field and fixed so it can freely rotate. Pass a current through the coil of wire and it will rotate to the perpendicular position. Now reverse the current flow and the coil will spin 180 degrees. The brushes and the commutator does the switching directions of the current through the coil at the appropriate moment to keep the coil rotating in one direction. This is the basics of all electric motors.

Flemings left hand rule is used to identify the direction of force.

Rather than using a permanent magnet, modern commercial electric motors usually rely completely on electromagnets.