Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
A copper wire is drawn down such that its length is doubled but the volume remains the same, what is the new resistance of the wire? A. R1 B. R1/2 C. 2R1 D. 4R1 A copper wire whose resistivity is 0.0043/"C at 0°C has its resistance increases by 25% of its initial value at 20°C. What is the operating temperature? A. 56.8 °C B. 83.1 °C С. 52.5 °с D. 78.3°C Two resistors R, and R2 are connected in parallel. R, is twice of R2 . If the current in R, is I, what is the current in R2? A. I В. 21 C. 41 D. 1/2 Find the total resistance if 30 is connected in series with the parallel combination of 4 0, 50 and 20 0. A. 40 В. 5 О C. 60 D. 70

A copper wire is drawn down such that its length is doubled but the volume remains the same, what is the new resistance of the wire? A. R1 B. R1/2 C. 2R1 D. 4R1 A copper wire whose resistivity is 0.0043/"C at 0°C has its resistance increases by 25% of its initial value at 20°C. What is the operating temperature? A. 56.8 °C B. 83.1 °C С. 52.5 °с D. 78.3°C Two resistors R, and R2 are connected in parallel. R, is twice of R2 . If the current in R, is I, what is the current in R2? A. I В. 21 C. 41 D. 1/2 Find the total resistance if 30 is connected in series with the parallel combination of 4 0, 50 and 20 0. A. 40 В. 5 О C. 60 D. 70

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
A copper wire is drawn down such that its length is doubled but the volume remains the same, what is the new resistance of the wire? A. R1 B. R1/2 C. 2R1 D. 4R1 A copper wire whose resistivity is 0.0043/"C at 0°C has its resistance increases by 25% of its initial value at 20°C. What is the operating temperature? A. 56.8 °C В. 83.1 °С С. 52.5 °с D. 78.3°C Two resistors R, and R2 are connected in parallel. R, is twice of R2 . If the current in R, is I, what is the current in R2? A. I В. 21 C. 41 D. 1/2 Find the total resistance if 30 is connected in series with the parallel combination of 4 0, 50 and 20 0. A. 40 В. 5 0 C. 60 D. 70
Transcribed Image Text:A copper wire is drawn down such that its length is doubled but the volume remains the same, what is the new resistance of the wire? A. R1 B. R1/2 C. 2R1 D. 4R1 A copper wire whose resistivity is 0.0043/"C at 0°C has its resistance increases by 25% of its initial value at 20°C. What is the operating temperature? A. 56.8 °C В. 83.1 °С С. 52.5 °с D. 78.3°C Two resistors R, and R2 are connected in parallel. R, is twice of R2 . If the current in R, is I, what is the current in R2? A. I В. 21 C. 41 D. 1/2 Find the total resistance if 30 is connected in series with the parallel combination of 4 0, 50 and 20 0. A. 40 В. 5 0 C. 60 D. 70
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
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