Question

The potential energy of system of two equal negative point charges of 2 microcoulomb each held 1m apart in air is?

Answer 1

potential energy

U=-kqq'/r²

U=-9×10^9(2×10^-6)²/1² J

U=23.09 J

Answer 2

Answer:3.6×10^-2 J is the correct answer.

So opt D is correct

Explanation: