M

Mr. Dubey • 52.30K Points
Coach 

Q. What material is used in the tunnel of the rotor of the single phase induction motor?

(A) aluminium
(B) copper
(C) steel
(D) wood
Correct : Option (A)

Explanation: 
 the rotor consists of a block of slotted laminations. the slots form a series of tunnels that are filled with aluminium in its molten state.

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