![Question 2: The definition of potential of a point at a position r away from a charged particle, Q is the work done to bring a test charge from infinity to that particular location. Prove that the potential can be quantified by this equation: V -kQ/r. [Hint: use the integration rule, F. dr] Calculate the potential at a distance 0.1 mm from a point charge of 50 uC.](http://img.homeworklib.com/questions/9a228880-6ffe-11ea-a599-73f0fa2cbec2.png?x-oss-process=image/resize,w_560)
Homework Answers
potential = kQ/r
where Q = charge
r = distance of the point from the charge
V = 9*10^9*50*10^-6 / 0.1*10^-3
= 4.5*10^9 volts
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