Question

State Fleming's Left-hand rule. Write functions of following parts of electric motor Armature, brushes and split rings.​

Answer 1

Answer:

The direction of the force which acts on the current carrying conductor placed in a magnetic field is given by Fleming's left-hand rule.

Fleming's right-hand rule stretch the thumb, forefinger and the central finger of the right hand mutually perpendicular to each other. If the forefinger points in the direction of the magnetic field, thumb in the direction of the motion of the conductor, then the central finger points in the direction of current induced in the conductor.

(b) Electric Motor: An electric motor converts electrical energy into mechanical energy.

Principle: It is based on the fact that when a coil carrying current is held in a magnetic field, it experiences a torque, which rotates the coil.

Answer 2

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