1.

Draw a labelled diagram of an electricmotor . Explain its princpleand working . Whatis thefunction of thesplit ring in an electricmotor ?

Answer»

SOLUTION :For labelleddiagramand working of an electricmotorsee answer to the Q.32 .
For principlesee answer to theQ.31 of Question and Answer section .
The function of the split RING: Due TOTHE split ringcommutatorin anelectric motor , the directionof the currentthrough the coilis reversed after everyhalfrotation ofthe coil . Thisreverses the direction ofthe force actingon thetwo arms of the coil . The arm that was earlier PUSHED downward in now pushed upwardsdownward is now pushed upward. whilethe other arm is now pushed downward. THEREFORE , the coilcontinues to rotate in the same direction .


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