7. The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at 20° C. What is the resistivity of the copper at this temperature? 8. Differentiate Ohmic from no-Ohmic materials. 9. Differentiate emf of a source and potential difference (PD) across a circuit.
7. The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at 20° C. What is the resistivity of the copper at this temperature? 8. Differentiate Ohmic from no-Ohmic materials. 9. Differentiate emf of a source and potential difference (PD) across a circuit.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
Related questions
Question
please answer 7,8 and 9
Transcribed Image Text:Direction: Solve each problem. Show complete solution in a separate sheet of paper.
1 What is the resistance of a 30 m silver wire with a 2 mm diameter?
2. A carbon wire with a 3 mm diameter has a resistance of 100 ohms. How long lo
the wire?
3. A 200 m long aluminum wire has the same resistance and cross-sectional arca
as a carbon wire. What is the length of the carbon wire?
4. A wire made of an unknown substance has a resistance of 125 ms2. The wire
has a length of 1.8 m and a cross-sectional area of 2.35x10-5 m2. What is the
resistivity of the substance from which the wire is made? Give your answer in
scientific notation.
5. Compute the resistance of a hardened copper rod 2 meters long and 8 mm in
diameter if the resistivity of the material is 1.756 x 10-8 ohm-meters.
6. A 0.500-meter length of wire with a cross-sectional area of 3.14 x 10-6 meterS
squared is found to have a resistance of 2.53 x 10-3 ohms. According to the
resistivity chart, from what material is the wire made?
7. The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in
diameter is 0.830 ohms at 20° C. What is the resistivity of the copper at this
temperature?
8. Differentiate Ohmic from no-Ohmic materials.
9. Differentiate emf of a source and potential difference (PD) across a circuit.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
Knowledge Booster
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.Recommended textbooks for you
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON