5.conditions.For a general DC motor, we aim to control the speed of the motor at different loading(1) List two factors influencing the motor speed for a given DC motor.(2) List three ways to stop a motor and comment on each method?

Step 1: (1). Two Factors Influencing the Speed of a DC Motor: (i). Applied Voltage (V): The speed…

Answered: 5. conditions. For a general DC motor,…

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter30: Dc Motors

Section: Chapter Questions

Problem 3RQ

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10. What is a potent PRACTICAL APPLICATIONS 1. You are an electrician on the job. It is decided that the speed of a large DC motor is to be reduced by connecting a resistor in series with its armature. The DC voltage applied to the motor is 250 V, and the motor has a full-load armature current of 50 Your job is to reduce the armature current to 40 A at full load by connecting the resistor in series with the armature. What value of resistance should be used, and what is the power rating of the resistor? 2. You are working on an electronic circuit. The circuit current is 5 mA. A resistor is marked with the following bands: brown, black, red, gold. A voltmeter measures voltage drop of 6.5 V across the resistor. Is this resistor within its tolerance rati 3. A homeowner uses a 100-watt incandescent lamp as a heater in an outside w pump house to protect the pump from freezing in cold weather. Unfortunately however, the lamp can burn out and leave the pump unprotected. You have b asked to…
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5. conditions. For a general DC motor, we aim to control the speed of the motor at different loading (1) List two factors influencing the motor speed for a given DC motor. (2) List three ways to stop a motor and comment on each method?