Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 11, Problem 6RQ
What is used to hold a sulfate ion together?
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Current can not flow through an insulator because
they have
O a. free electrons
O b. no free protons
O c. no free electrons
O d. free neutrons
Using the data in the photo, write a 5 sentence conclusion.
Question 3
a. Some materials exhibit the property of superconductivity under certain conditions.
State what is meant by superconductivity and explain the required conditions for the
material to become superconducting.
b. The diagram below shows the cross-section of a cable consisting of parallel filaments
that can be made superconducting, embedded in a cylinder of copper.
copper cylinder
filament
The cross-sectional area of the copper in the cable is 2.28 x 10-7 m². The resistance
of the copper in a 1.0 m length of the cable is 0.075 N. Calculate the resistivity of the
copper, stating an appropriate unit.
State and explain the what happen to the resistance of the cable when the
embedded filaments of wire are made superconductive?
i.
Chapter 11 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 11 - 1. Conduction in a liquid depends on the movement...Ch. 11 - What is a negative ion?Ch. 11 - 3. What is a positive ion?
Ch. 11 - Name three basic substances that can be used to...Ch. 11 - What is an electrolyte?Ch. 11 - 6. What is used to hold a sulfate ion together?
Ch. 11 - What is the negative terminal of a power source...Ch. 11 - Prob. 8RQCh. 11 - What determines the thickness of the coating...Ch. 11 - What is electrolysis?
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- #5arrow_forwardPls i need the answer of this questionsarrow_forward1. Given a typical tungsten filament of a light bulb, 1 m long and 0.05mm in radius. nim B. Given that the temperature resistivity coefficient of tungsten is 4.5 X 10-3/ °C, meldoig zinovovd omo A. Calculate the typical resistance of the filament given that its resistivity at 20 °C is 5.6 X 10-8 (Q -m). calculate the resistance at 2000 °C. assuming linear resistivity-temperature 2000 ert pria relation.arrow_forward
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