3.a. Which one of the following motor types uses permanent magnets in the armature or rotor? A. Stepper motor B. PM motor C. Pancake motor D. PM servo motor 3.b. A type of resistance device that can be placed in a DC motor circuit and varied to limit the speed of a motor is called a A. power resistor. B. rheostat. C. potentiometer. D. variable reluctor.

3.a. Which one of the following motor types uses permanent magnets in the armature or rotor? A. Stepper motor B. PM motor C. Pancake motor D. PM servo motor 3.b. A type of resistance device that can be placed in a DC motor circuit and varied to limit the speed of a motor is called a A. power resistor. B. rheostat. C. potentiometer. D. variable reluctor.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter5: Resistors

Section: Chapter Questions

Problem 1PA

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