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Electrostatics question

2021 · 25 Feb · Shift 2 · Q72
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Electrostatics question

2021 · 25 Feb · Shift 2 · Q72

JEE MainPhysicsElectrostaticsNumerical+4 / −1
Two identical conducting spheres with negligible volume have 2.1 nC and −-− 0.1 nC charges, respectively. They are brought into contact and then separated by a distance of 0.5 m. The electrostatic force acting between the spheres is ‾×\underline{\hspace{2cm}}\times​× 10 −-− 9 N. [Given : 4πε0=19×1094\pi {\varepsilon _0} = {1 \over {9 \times {{10}^9}}}4πε0​=9×1091​ SI unit]
Numerical answer
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