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Electrostatics question

2025 · 24 Jan · Shift 2 · Q58
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  5. /2025 · 24 Jan · Shift 2 · Q58

Electrostatics question

2025 · 24 Jan · Shift 2 · Q58

JEE MainPhysicsElectrostaticsMCQ+4 / −1
A small uncharged conducting sphere is placed in contact with an identical sphere but having 4×10−8C4 \times 10^{-8} \mathrm{C}4×10−8C charge and then removed to a distance such that the force of repulsion between them is 9×10−3 N9 \times 10^{-3} \mathrm{~N}9×10−3 N. The distance between them is (Take 14πϵo\frac{1}{4 \pi \epsilon_{\mathrm{o}}}4πϵo​1​ as 9×1099 \times 10^99×109 in SI units)
  1. A
    1 cm
  2. B
    2 cm
  3. C
    4 cm
  4. D
    3 cm
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