explain construction and working of electric motor without diagrams
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۰۪۫c۪۫۰۰۪۫o۪۫۰۰۪۫n۪۫۰۰۪۫s۪۫۰۰۪۫t۪۫۰۰۪۫r۪۫۰۰۪۫u۪۫۰۰۪۫c۪۫۰۰۪۫t۪۫۰۰۪۫i۪۫۰۰۪۫o۪۫۰۰۪۫n۪۫۰
rectangular loop of ABCD of copper wire with resistive coating is placed between the North Pole and South Pole of a strong magnet such as the branches AB and CD are perpendicular to the direction of the magnetic field. the ends of the loop are connected to the slipt rings. the slipt ring are tightly fitted with axle. the outer conducting surface of X and Y are in contact with two stationary carbon brushes, E and F respectively
۰۪۫w۪۫۰۰۪۫o۪۫۰۰۪۫r۪۫۰۰۪۫k۪۫۰۰۪۫i۪۫۰۰۪۫n۪۫۰۰۪۫g۪۫۰
1) when the circuit is completed with plug key, the current flows in the direction A→B→C→D.as the magnetic field is directed from the north Pole to the south Pole, the force on AB and CD are downward and upward respectively by Fleming's left hand rule. AB moves downward and CD upward. these forces are equal in magnitude and opposite in direction. therefore, as observed from the side AD, the loop ABCD and the axle start rotating in anticlockwise direction.
2) After every half a rotation, X and Y come in contact with carbon brushes E and F respectively and the current flows in the direction EDCBAF. hence the force on AB is upward and CD is downward. hence the loop rotates in anticlockwise direction.
3) After every half rotation, the current in the loop is reversed and the loop and the axle continue to rotate in anticlockwise direction
When the current switched off, the loop stops rotating after sometime.
۰۪۫H۪۫۰۰۪۫o۪۫۰۰۪۫p۪۫۰۰۪۫e۪۫۰ ۰۪۫t۪۫۰۰۪۫h۪۫۰۰۪۫a۪۫۰۰۪۫t۪۫۰ ۰۪۫t۪۫۰۰۪۫h۪۫۰۰۪۫i۪۫۰۰۪۫s۪۫۰ ۰۪۫w۪۫۰۰۪۫i۪۫۰۰۪۫l۪۫۰۰۪۫l۪۫۰ ۰۪۫h۪۫۰۰۪۫e۪۫۰۰۪۫l۪۫۰۰۪۫p۪۫۰ ۰۪۫y۪۫۰۰۪۫o۪۫۰۰۪۫u۪۫۰