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If ' $n$ ' electrons are placed on each of the two small spheres with their centres spaced $3 \mathrm{~cm}$ apart so that they repel each other by a force of $10^{-19} \mathrm{~N}$ then ' $\mathrm{n}$ ' will be
$\left[\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9 \mathrm{Nm}^2 \mathrm{C}^{-2}\right]$
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$\left[\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9 \mathrm{Nm}^2 \mathrm{C}^{-2}\right]$
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1467 Upvotes
Verified Answer
The correct answer is:
$625$
No solution. Refer to answer key.
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