What is the temperature coefficient of resistance of a piece of wire having a resistance of 11.56 ohm at 25°C and 10.22 ohm at 0°C? what will be its resistance at 50°C?
What is the temperature coefficient of resistance of a piece of wire having a resistance of 11.56 ohm at 25°C and 10.22 ohm at 0°C? what will be its resistance at 50°C?
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)...
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What is the temperature coefficient of resistance of a piece of wire having a resistance of 11.56 ohm at 25°C and 10.22 ohm at 0°C? what will be its resistance at 50°C?
![Electromotive force is the voltaee across the terminals of a cell when no current flows.
Terminal voltage is the potential difference across the terminals of the cell when there
Is a current flowing through it. Because a cell has an internal resistance, the terminal
voltage is less than the electromotive force.
Self-Check
PART I CRITICAL THINKING
Solve the following problems:
1. A charge of 20 C flows out from a battery in 8 s. How much current passes through
the lamp?
2. Suppose that each headlight of a car uses 3A and that the driver accidentally left the
headlights on. How long will it take for a 12 V battery rated 80 A-h to be fully
discharged?
3. A nerve fiber may be approximated as a cylinder with a diameter of 1x 10-5m and a
length 2.0 x 10-1 m. Find the resistance of this nerve fiber if its resistivity is 2.5 N-m.
A. What is the temperature coefficient of resistance of a piece of wire having a resistance
of 11.56 n at 25°C and 10.22 n at 0°C? What will be its resistance at 50°C?
5. Give the resistance of the following resistors based on their color bands:
a) red-green-black-gold
b) brown-blue-brown-silver
c) blue-red-orange-yellow-gold
PERFORMANCE TASK: ELECTRIC BILL](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7f1b97ed-7c31-46e7-b669-9f73f9f21ee5%2Feed44edd-e83c-4382-8251-8c26df57b85a%2Fruh8urn_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Electromotive force is the voltaee across the terminals of a cell when no current flows.
Terminal voltage is the potential difference across the terminals of the cell when there
Is a current flowing through it. Because a cell has an internal resistance, the terminal
voltage is less than the electromotive force.
Self-Check
PART I CRITICAL THINKING
Solve the following problems:
1. A charge of 20 C flows out from a battery in 8 s. How much current passes through
the lamp?
2. Suppose that each headlight of a car uses 3A and that the driver accidentally left the
headlights on. How long will it take for a 12 V battery rated 80 A-h to be fully
discharged?
3. A nerve fiber may be approximated as a cylinder with a diameter of 1x 10-5m and a
length 2.0 x 10-1 m. Find the resistance of this nerve fiber if its resistivity is 2.5 N-m.
A. What is the temperature coefficient of resistance of a piece of wire having a resistance
of 11.56 n at 25°C and 10.22 n at 0°C? What will be its resistance at 50°C?
5. Give the resistance of the following resistors based on their color bands:
a) red-green-black-gold
b) brown-blue-brown-silver
c) blue-red-orange-yellow-gold
PERFORMANCE TASK: ELECTRIC BILL
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