How much work must be done to bring three electrons from a great distance apart to...
How much work must be done to bring three electrons from a great distance apart to 2.5×10−10 m from one another (at the corners of an equilateral triangle)? Express your answer using two significant figures.
Homework Answers
work done = increase in elecrostatic potential energy in forming
the system of charges
ie., W = 3 x 9x10^9 e x e / d = 3 x9x10^9 x 1.6x10^-19 x1.6 x10^-19
/ 2.5 x10^-10
= 2.8 x 10^-18 J.
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