Answered: 28- The power of an unknown resistor…

28- The power of an unknown resistor is 0.50 W. What is the current flowing through the resistor when the resistor is connected to a 10 V source? A) 50 mA B) 23 mA C) 41 mA D) 14 mA E) 32 mA

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 8CQ: The [R drop across a resistor means that there is a change in potential or voltage across the...

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

28-

The power of an unknown resistor is 0.50 W. What is the current flowing through the resistor when the resistor is connected to a 10 V source?

50 mA

23 mA

41 mA

14 mA

32 mA

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