Two identical charges, 5 μC each, are in the air. What is the largest charge to be transferred from one charge to another, so that their interaction force decreases 2.5 times ?
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Two identical charges, 5 μC each, are in the air. What is the largest charge to be transferred from one charge to another, so that their interaction force decreases 2.5 times ?

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: D: 15 μC.