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Electrostatics question

2025 · 24 Jan · Shift 2 · Q69

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JEE Main
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Electrostatics
2025 · 24 Jan · Shift 2 · Q69

Electrostatics question

2025 · 24 Jan · Shift 2 · Q69

JEE MainPhysicsElectrostaticsMCQ+4 / −1

JEE Main 2025 (Online) 24th January Evening Shift Physics - Electrostatics Question 22 English

In the first configuration (1) as shown in the figure, four identical charges

\left(q_0\right)

are kept at the corners A, B, C and D of square of side length '

a

'. In the second configuration (2), the same charges are shifted to mid points

G, E, H

and

F

, of the square. If

K=\frac{1}{4 \pi \epsilon_0}

, the difference between the potential energies of configuration (2) and (1) is given by :

A
$\frac{K q_0^2}{a}(4-2 \sqrt{2})$
B
$\frac{K q_0^2}{a}(4 \sqrt{2}-2)$
C
$\frac{\mathrm{Kq}_0^2}{\mathrm{a}}(3-\sqrt{2})$
D
$\frac{\mathrm{Kq}_0^2}{\mathrm{a}}(3 \sqrt{2}-2)$

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