Answered: What will be the resistance of a copper…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 66AP: When a straight wire is heated, its resistance changes according to the equation R = R0 [1 + (T ...

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3. What will be the resistance of a copper wire that has a radius of 2 cm and length of 100 cm? The resistivity of the copper wire is 1.7x10^(-8) ohm.meter? a. 400 b. 500 c. 600 d. NONE OF THE CHOICES 4. Calculate the temperature of a wire if its resistance is increase to 200 ohm from 150 ohm at 25 degree Celsius. The temperature coefficient of the wire is 0.0225 per degree Celsius. a. 46.28 b. 26.48 c. 84.26 d. NONE OF THE CHOICES 5. Find the current rating of a defibrillator that can pass electric charge at 200 mA at 0.127 seconds. Calculate also the number of electrons on that particular time. a. 2.57 A and 125 electron b. 5.57 A and 1250 electron c. 7.57 A and 12500 electron d. NONE OF THE CHOICES Please don't write in a paper. I can't understand handwritten well.

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