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 A 5.0 µC point charge is moved within an electric field and has an electric...

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atrinity | Honors

Posted May 2, 2013 at 6:16 PM via web

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 A 5.0 µC point charge is moved within an electric field and has an electric potential energy change of 10.0 J. What is the electric potential difference before and after the charge was moved? Show your work. (µC = 1.0 × 10–6 C)

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ishpiro | Teacher | (Level 1) Associate Educator

Posted May 3, 2013 at 1:36 AM (Answer #1)

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The change of potential energy of a charge is the charge times the potential difference:

`Delta U = q*DeltaV`

So, the potential difference is

`Delta V = Delta U/q = 10 J/(5 muC) = 2*10^6 V = 2MV` (megavolts)

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