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MHT CET 2024 (2 May, Shift 1) · Electrostatic Potential Energy

Electrostatic Potential Energy question from MHT CET 2024 (2 May, Shift 1)

Q34MHT CET 2024 · 2 MAY · SHIFT 1Medium

Electrostatic Potential Energy

Three charges are placed at the vertices of an equilateral triangle as shown in the figure. For what value of charge ' $Q$ ', the electrostatic potential energy of the system is zero?

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Answer: (d)

Equal sides $a$ : $q\cdot q + qQ + qQ = 0$
$q + 2Q = 0 \Rightarrow Q = -\dfrac{q}{2}$
So the answer is (d).

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