Two positive point charge of 12 ?C and 8 ?C are 10 cm apart. The work done in bringing them 4 cm closer is...

Answer 1

So move either charge 4 cm.

I assume you have calculus
work=INT force*dx from .1 to .06 m

work= int kq1q2dx/x^2 over limits
= kq1q2/x over limits
= kqq(1/.04 - 1/.1)
= kqq(.1-.04)/.004
= kqq(.06/.004)

Answer 2

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