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    shibz's Avatar
    shibz Posts: 1, Reputation: 1
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    #1

    Oct 10, 2008, 01:38 AM
    Electric field and potential
    If an electric field e= i20+j30 N/C exists in space.. if potential at origin is taken to be zero.find the potential at(2m,2m)??
    garcon81's Avatar
    garcon81 Posts: 4, Reputation: 3
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    Oct 10, 2008, 08:41 AM

    Remember what the relationship is between electric field and electric potential. If you have a constant electric field, the potential is given by the negative of the electric field times the displacement, plus some constant number C. Since you have a 2D field in this case, you can treat each component individually (so v =-(e_x *x + e_y * y)+C). Then, since you're given the value of the potential at the origin, that tells you what the value of C is that you should use.
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