Homework Help: Physics

Posted by Mikie on Monday, April 18, 2011 at 3:42pm.

A charge of 0.25 C moved from a position where the electric potential is 20 V to a position where the potential is 50 V. What is the change in potential energy?

Physics - bobpursley, Monday, April 18, 2011 at 4:51pm
work= PE1-PE= q1V1-q2V2=.25 (-30)=-7.5J

PE change = - work done

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