2. A 1.5-m wire measuring 1.5 m³ has a resistance of 0.955-µN at 20 °C. Calculate the resistance of the wire at 20 °C if the length is changed to 150-m and its area to 450-cm?.
2. A 1.5-m wire measuring 1.5 m³ has a resistance of 0.955-µN at 20 °C. Calculate the resistance of the wire at 20 °C if the length is changed to 150-m and its area to 450-cm?.
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
can you help me in number 2?
Transcribed Image Text:2. A 1.5-m wire measuring 1.5 m3 has a resistance of 0.955-µ0 at 20 °C. Calculate
the resistance of the wire at 20 °C if the length is changed to 150-m and its area
to 450-cm?.
3. A 1-km cable consists of 12 identical strands of aluminum, each 3mm in
diameter. What is the resistance of the cable? (Hint: the 12 strands resemble 12
resistances in parallel, each resistance being the resistance of each strand).
4. A conductor has a resistance of 7-0 at 0°C. At 20 °C, its temperature coefficient
is 0.00333. Find its resistance at 10 °C.
5. An electric heater takes 23.889 kcal in 20 minutes at 200 V. What is the current
drawn by the heater? (Hint: 4.186 J = 1 cal)
6. How many electrons pass in a given point in 40 seconds in a conductor carrying
10 Amperes?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 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