GFJNIN383 GFJNIN383

10-06-2017
Physics

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Moving 4.0 coulombs of charge through a circuitrequires 48 joules of electric energy. What is thepotential difference across this circuit?(1) 190 V (3) 12 V(2) 48 V (4) 4.0 V

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festinger festinger

18-06-2017

1V = 1J/C

Thus, moving 4 coulombs over 1V potential requires 4J of energy.

In this case, then
[tex]Work = Potential\,Difference*Charge[/tex]
[tex]48 = V_{pd}*4C[/tex]
[tex]V_{pd}= 12V[/tex]

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