A charge of #2# #C# is passing through points A and B on a circuit. If the charge's electric potential changes from #12# #J# to #8# #J#, what is the voltage between points A and B?

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Answer 1 · 2016-02-20T00:56:17

One volt is defined as a potential energy change of one joule per coulomb of charge: #V=(DeltaE_p)/Q=(12-8)/2=2# #V#.