A charge 10 exists at the centre of a square. The work done in moving a 2 point charge from corner A to corner B of a square ABCD is (a) zero (b) 5 J (c) 2 J (d) 20 J

Answer: (a). A and B are equidistant from the centre charge, so VA = VB. W = q(VB - VA) = 0 So the answer is (a) zero.

A charge 10 exists at the centre of a square. The work done in moving… | MHT CET 2026 (15 May, Shift 1)

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Electrostatic Potential Energy

A charge $10\ \mu\text{C}$ exists at the centre of a square. The work done in moving a $2\ \mu\text{C}$ point charge from corner A to corner B of a square ABCD is

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Answer: (a)

A and B are equidistant from the centre charge, so $V_A = V_B$ .
$W = q(V_B - V_A) = 0$
So the answer is (a) zero.

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