9. a. A 5Q resistor is connected to a 20 V D.C. power supply. Calculate the time for 3000 J of energy to be converted to heat in this resistor. b. Calculate the power output of a 120 Q heater which operates on a 20 V D.C. supply.

9. a. A 5Q resistor is connected to a 20 V D.C. power supply. Calculate the time for 3000 J of energy to be converted to heat in this resistor. b. Calculate the power output of a 120 Q heater which operates on a 20 V D.C. supply.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 78AP: A 20.00-ohm; 5.00-watt resistor is placed in series with a power supply, (a) What is the maxim tun...

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