State two dis-similarities and one similarity between a d.c. motor and – InterviewSolution

1.

State two dis-similarities and one similarity between a d.c. motor and an a.c. generator.

Answer»

Two dissimilarities between D.C. motor and A.C. generator:

A.C. Generator	D.C. Motor
A generator is a device which converts mechanical energy into electrical energy	A D.C. motor is a device which converts electrical energy into mechanical energy.
A generator works on the principle of electromagnetic induction.	A D.C. works on the principle of force acting on a current carrying conductor placed in a magnetic field.

Similarity: Both in A.C generator and D.C motor, a coil rotates in a magnetic field between the pole pieces of a powerful electromagnet.

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