Question

Three point charges \( -1C, +1C, +1C \) are placed at points \( A, B, C \) respectively of a triangle \( ABC \). What is the total potential energy of the system? [given \( AB = AC = 6 \, \text{cm} \) and \( BC = 3 \, \text{cm} \)]

• A. \( 0 \, J \) (Zero joule)
• B. \( 4.5 \times 10^{13} \, J \)
• C. \( 6 \times 10^{13} \, J \)
• D. \( 3 \times 10^{13} \, J \)

Hint:

For a system of point charges, calculate potential energy for each pair separately and then add all pairwise energies algebraically.

Answer 1

The Correct Option is A