15. A 1.5 volt battery causes a small motor to run using 50.mA of current. What power does the motor use?16. A light bulb consumes 75 watts when connected to a household current of 120 V. Find the current andresistance of the light bulb.17. A flashlight bulb uses a voltage of 3.0 V and draws a current of 1.5 A. What is the power rating of the bulb?

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15. A 1.5 volt battery causes a small motor to run using 50.mA of current. What power does the motor use?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 23PE: A power transmission line is hung from metal towers with glass insulators having a resistance of...

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Question

15. A 1.5 volt battery causes a small motor to run using 50.mA of current. What power does the motor use?
16. A light bulb consumes 75 watts when connected to a household current of 120 V. Find the current and
resistance of the light bulb.
17. A flashlight bulb uses a voltage of 3.0 V and draws a current of 1.5 A. What is the power rating of the bulb?

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