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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asked Aug 17, 2018 89.8k views

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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

Physics
high-school

Botchniaque asked

by Botchniaque

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1 Answer

4 votes

1V = 1J/C

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

In this case, then

$Work = Potential\,Difference*Charge$

48 = V_(pd)*4C