Question

Explain the working and theory of an electric motor❓

GUYZ PLZ DO EXPLAIN IT IN A SHORT WAY SO THAT I CAN REMEMBER IT EASILY AND ALSO UNDERSTAND IT❕❕

❌no spams❌​

Answer 1

Answer:

principal

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 forces act on the coil which rotates it continuously

construction

it consists of rectangular coil se ABCD connected to a source of current and a switch

the commutatus R1 and R2 are fixed to the coil and pressed tightly against the brushes X and y

the function of commutator is to reverse the direction of current flowing through the coil after every rotation in an electric motor split rings act as a commutator

working

red coil ABCD in a in horizontal position when key is close the current flows in the coil ABCD through brush X and closed back to the battery through brush y no force acts on arms BC and AD as they are parallel to the magnetic field experiences a force and downward direction and ARM CD experience an equal force in upward direction the direction of force is obtained by applying Fleming's left hand rule this causes a call to rotate in anticlockwise direction when the clock rotates on its vertical position the precious loose contact with earrings and current stops flowing at the coil does not stop due to inertia of motion when a coil rotates rings change their position and come in contact with opposite brushes this reverse is the direction of current through thecoil but the direction of current on right hand side of the coin remains same to the force on right hand side is always a bird and the force on left hand side is always downward does the coil continues to rotate in anticlockwise direction

Answer 2

Answer:

Explanation:

Conversion of electrical power into mechanical power takes place in the rotating part of an Electric

motor. In D.C. motor, the electrical power is conducted directly to the armature (i.e. rotating part)

through the brushes and Commutator. Hence, in this sense, a D.C. motor can be called a conduction

motor. However, in A.C. motors, the rotor does not receive electric power by conduction but by

induction in exactly the same way as the secondary of a 2-winding transformer receives its power from

primary. That is why such motors are called induction motors. In fact, induction motors can be treated

as a rotating transformer i.e. in one which primary winding is stationary but the secondary is free to

rotate.