Three charges Q, + q and + q are placed at the vertices of a right- angled isosceles triangle as shown. The net electrostatic energy of the configuration is zero if Q is equal to :

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G1 Physics · Accepted Answer

Step 1: Identify the relevant electrostatic principle—Coulomb's law, superposition, Gauss's law, potential-energy conservation or conductor boundary conditions. Step 2: Write the corresponding equation using the quantities in the question and simplify the geometry. Step 3: Substitute the given values and compare with the alternatives. Final: Option B. In this specific setup, apply the calculation to: Three charges Q, + q and + q are placed at the vertices of a right- angled isosceles triangle a…