Three point charges are placed at the corners of an equilateral triangle. Assuming only electrostatic forces are acting

Options

A. The system will be in equilibrium if the charges have same magnitude but different signs
B. The system will be in equilibrium if the charges have different magnitude and different signs
C. The system will be in equilibrium if the charges rotate about the centre of the triangle
D. The system can never be in equilibrium

Answer

D