5. In the lecture, I described Joule's use of an electric generator to heat a mass of water. Instead of a generator connected to a resistor, let there be a 12V battery connected to a 30 resistor. a) How much current will run through the circuit? b) If the heat generated by an electric circuit is given by: P = I²R how long would it take to raise 1 gallon of water by 1 degree celsius? (FYI, amps squared multiplied by ohms reduces to the units joules/second)

5. In the lecture, I described Joule's use of an electric generator to heat a mass of water. Instead of a generator connected to a resistor, let there be a 12V battery connected to a 30 resistor. a) How much current will run through the circuit? b) If the heat generated by an electric circuit is given by: P = I²R how long would it take to raise 1 gallon of water by 1 degree celsius? (FYI, amps squared multiplied by ohms reduces to the units joules/second)

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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