Question

The final forms of the expression for generated EMF and torque,for AC and DC machines differ, because ____________

(a) the fundamental principles underlying their operation are same

(b) the fundamental principles underlying their operation are different

(c) their construction details are same

(d) their construction details are different

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Enquiry is from Torque Production and Dynamic Equations topic in division Basic Concepts in Rotating Machines of Electrical Machines

Answer 1

Correct answer is (d) their construction details are different

The explanation: Though AC and DC machine have same operating fundamental principles, their construction details differ.