Question

A charge of 8 mC is located at the origin. Calculate the work done in taking a small charge of -2 X 10-°C
from a point P (0, 0,3 cm) to a point Q (0,4 cm, 0) via a point R (0,6 cm, 9 cm).​

Answer 1

Charge 1 - 8mC ; Charge 2 - 2 x 10⁻⁹ C,

Work done = kq₁q₂(1/r₁ - 1/r₂)

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