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What is the material used in the lamination of the magnetic poles of small universal commutator motor?(a) copper(b) aluminium(c) gold(d) sheet steelI got this question by my school teacher while I was bunking the class.My enquiry is from Design of Small Universal Commutator Motors topic in division Design of Small Electrical Machines, Starters and Field Regulators of Design of Electrical Machines

Answer»

The correct option is (d) sheet steel

For EXPLANATION: UNLIKE dc motors UNIVERSAL commutator motors are having laminated POLES. The laminated poles are laminated USING the sheet steel.



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