1. Calculate the resistance of a copper wire that is 3-meter long and has a diameter of 0.005m.

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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Direction: Solve the following problems. Follow the format of providing the given, required, formula,
solution/substitution of data, then encircle your final answer having the appropriate unit.
1. Calculate the resistance of a copper wire that is 3-meter long and has a diameter of 0.005m.
2. The resistance of a piece of carbon at 20°C is 100. What is its resistance at (a) 30°C & (b) 10°C?
3. Calculate the power in a 1000 a electric heater if the current through it is (a) 0.5 A & (b) 1 A.
Transcribed Image Text:Direction: Solve the following problems. Follow the format of providing the given, required, formula, solution/substitution of data, then encircle your final answer having the appropriate unit. 1. Calculate the resistance of a copper wire that is 3-meter long and has a diameter of 0.005m. 2. The resistance of a piece of carbon at 20°C is 100. What is its resistance at (a) 30°C & (b) 10°C? 3. Calculate the power in a 1000 a electric heater if the current through it is (a) 0.5 A & (b) 1 A.
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