Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
1. A group of dc motors is to operate at 220 volts at a place that is 400 ft away from 230-volt mains. What diameter (minimum) of copper wire is to be used in connecting the motors to the main, if the motors take a total of 75 A? a. 0.25 in b. 0.33 in c. 0.18 in

1. A group of dc motors is to operate at 220 volts at a place that is 400 ft away from 230-volt mains. What diameter (minimum) of copper wire is to be used in connecting the motors to the main, if the motors take a total of 75 A? a. 0.25 in b. 0.33 in c. 0.18 in

Introductory Circuit Analysis (13th Edition)
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...
See similar textbooks
icon
Related questions
Question

l3

answer 1 2 and 3

Lesson 3- Circuits 1 1. A group of dc motors is to operate at 220 volts at a place that is 400 it away from 230-volt mains. What diameter (minimum) of copper wire is to be used in connecting the motors to the main, if the motors take a total of 75 A? a. 0.25 in b. 0.33 in c. 0.18 in d. 0.45 in 2. An 8-Qresistance and resistor R. The entire circuit is connected across a 100-V source. If the voltage across resistor R is 20 V, find the value of R. a. 40 b. 6N c. 20 d. 80 3. Two resistors are wound with round copper wire. The length and cross sectional area of the second wire is 25% and 50% of the first wire. Determine the ratio of the power drawn by the first to the second resistors if they are connected across the same voltage source. a. 1/8 b. 1/4 c. 1/2 d. 1/16
Transcribed Image Text:Lesson 3- Circuits 1 1. A group of dc motors is to operate at 220 volts at a place that is 400 it away from 230-volt mains. What diameter (minimum) of copper wire is to be used in connecting the motors to the main, if the motors take a total of 75 A? a. 0.25 in b. 0.33 in c. 0.18 in d. 0.45 in 2. An 8-Qresistance and resistor R. The entire circuit is connected across a 100-V source. If the voltage across resistor R is 20 V, find the value of R. a. 40 b. 6N c. 20 d. 80 3. Two resistors are wound with round copper wire. The length and cross sectional area of the second wire is 25% and 50% of the first wire. Determine the ratio of the power drawn by the first to the second resistors if they are connected across the same voltage source. a. 1/8 b. 1/4 c. 1/2 d. 1/16
Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,
SEE MORE TEXTBOOKS