Three point charges q1,q2and q3, each of magnitude 200uC, are placed at the corners A,B and C respectively of an equilateral triangle. The length of the side is 10cm. Calculate the potential energy of the system.
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potential energy will be=k/r(q1q2+q2q3+q3q1)
since q1=q2=q3
implies
U=3*kq^2/r
U=9*10^9*200*200*10^-6*10^-6/10^-1
U=3600J
since q1=q2=q3
implies
U=3*kq^2/r
U=9*10^9*200*200*10^-6*10^-6/10^-1
U=3600J
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