MCQ
Coulomb's Law is true for:
  • A
    Atomic distances $\left(=10^{-11} m\right)$
  • B
    Nuclear distances $\left(=10^{-15} m\right)$
  • C
    Charged as well as uncharged particles
  • All the distances

Answer

Correct option: D.
All the distances
d. All the distances
Explanation:
Coulomb's law is true for all distances whether it is small and large. Hence it is called a long range force.
Coulomb's force $F =\frac{ q _1 q _2}{4 \pi \epsilon_{ o } r ^2}$
$\Rightarrow F \propto \frac{1}{ r ^2}$

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