(e) The coil of a simple electric motor has a resistance of 200 N. At start-up the motor uses 242 W of electrical power. At full speed the motor uses 33.0 W of electrical power. Calculate the back EMF of the motor when it is running at full speed.

(e) The coil of a simple electric motor has a resistance of 200 N. At start-up the motor uses 242 W of electrical power. At full speed the motor uses 33.0 W of electrical power. Calculate the back EMF of the motor when it is running at full speed.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.

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(e) The coil of a simple electric motor has a resistance of 200 . At start-up the motor
uses 242 W of electrical power. At full speed the motor uses 33.0 W of electrical power.
Calculate the back EMF of the motor when it is running at full speed.

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