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# point A is 2.50 m from +3.73*10^-8 C charge, and point B is 1.00 m from the charge.?

what is the potential difference when you go from point A to point B?

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- Steve4PhysicsLv 74 weeks agoFavorite Answer
From A to B the potential increases (moving towards a positive charge) so you expect a positive value for the answer.

ΔV = VB - VA (that's the correct formula going from B to A)

= kQ/rB - kQ/rA

= kQ(1/rB - 1/rA)

= 8.99*10^9 * 3.73*10^-8 (1/1.00 - 1/2.50)

= 201volts

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