The force between charges is proportional to the product of their charges and inversely proportional to the square of the distance between them. kq192 f(x) = x2 Where 9, and q2 are in coulombs (C), x is in metres, the force is in newtons and k is a constant,k = 9 X10°. It follows that the work done when electric charges move toward each other (or when they are separated) is given by: k q192 Work = dx An electron has a 1.6 X 10-19 C negative charge How much work is done in separating two electrons from 1.0 pm to 4.0 pm? (pm means picometre)
The force between charges is proportional to the product of their charges and inversely proportional to the square of the distance between them. kq192 f(x) = x2 Where 9, and q2 are in coulombs (C), x is in metres, the force is in newtons and k is a constant,k = 9 X10°. It follows that the work done when electric charges move toward each other (or when they are separated) is given by: k q192 Work = dx An electron has a 1.6 X 10-19 C negative charge How much work is done in separating two electrons from 1.0 pm to 4.0 pm? (pm means picometre)
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