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A charge of +1µC sits at the origin, and a charge of −2µC sits on the...

A charge of +1µC sits at the origin, and a charge of −2µC sits on the x-axis at x = 10 mm. Calculate the energy it would take to completely separate the two charges.

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Answer #1

Energy at infinite is zero

And energy of system in given situation is

E= kq1q2/r = -9×10^9×1×10^(-6)×2×10^(-6)/0.01

So E = -1.8J

So energy required to separate both charges will be same as above but will be positive hence 1.8J

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