Answered: A device operating at a potential…

A device operating at a potential difference of 1.5 volts draws a current of 0.20 ampere. How much energy is used by the device in 60 seconds?

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter7: Electricity

Section: Chapter Questions

Problem 7C: Imagine a company offering a line of hair dryers that operate on different voltages, say, 12, 30,...

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Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

Question

6. A device operating at a potential difference
of 1.5 volts draws a current of 0.20 ampere.
How much energy is used by the device in
60. seconds?
(1) 4.5 J
(2) 8.0 J
(3) 12 J
(4) 18 J
6.

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