Electromagnetic Induction Multiple Choice Quiz Questions and Answers Pdf - 1

Question: 1

_____ force drives or tends to drive flux through a magnetic circuit.

Question: 2

The cost of a synchronous motor is _____ in comparison to that of an induction motor of same size and output rating.

Question: 3

The emf induced in a coil rotating in a uniform magnetic field is maximum when the flux linkage by the coil is

Question: 4

The efficiency of a dc machine will be _____ when variable losses are equal to constant losses.

Question: 5

The efficiency of a dc motor when developing maximum power will be _____ than 50%.