3. What is the electric resistance of a copper wire 225 mm long with a radius of 0.85 mm? 4. An Iron rod's diameter is 9.00 mm and its resistivity at 20 ° C is 9.71x108 Q.m. How long must the rod be to offer a resistance of 3.00 x 10³ Q?

College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter20: Electric Current, Resistance, And Ohm's Law
Section: Chapter Questions
Problem 70PE: Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b)...
icon
Related questions
Question
3&4 only thankyouuuu
II.
Direction: Solve the following problems. Write your answer with your solution on a separate sheet of paper.
1. What is the electric resistance of a silver wire 0.40 m long with a diameter of 1.5 mm?
2. What should be the radius of a 1.20m-long silver wire to have resistance of 0.32 Q?
3. What is the electric resistance of a copper wire 225 mm long with a radius of 0.85 mm?
4. An Iron rod's diameter is 9.00 mm and its resistivity at 20°C is 9.71x108 Q.m. How long must the rod be to offer
a resistance of 3.00 x 10³ Q?
Transcribed Image Text:II. Direction: Solve the following problems. Write your answer with your solution on a separate sheet of paper. 1. What is the electric resistance of a silver wire 0.40 m long with a diameter of 1.5 mm? 2. What should be the radius of a 1.20m-long silver wire to have resistance of 0.32 Q? 3. What is the electric resistance of a copper wire 225 mm long with a radius of 0.85 mm? 4. An Iron rod's diameter is 9.00 mm and its resistivity at 20°C is 9.71x108 Q.m. How long must the rod be to offer a resistance of 3.00 x 10³ Q?
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Circuits
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College
University Physics Volume 2
University Physics Volume 2
Physics
ISBN:
9781938168161
Author:
OpenStax
Publisher:
OpenStax
Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers with Modern …
Physics for Scientists and Engineers with Modern …
Physics
ISBN:
9781337553292
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers, Technology …
Physics for Scientists and Engineers, Technology …
Physics
ISBN:
9781305116399
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning