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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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Assuming that the charge on an atom is distributed uniformly in a sphere of radius

10^{-10} \mathrm{~m}

, what will be the electric field at the surface of the gold atom? For gold,

\mathrm{Z}=79

.

View answer and explanation

Correct option: B

1.138 \times 10^{13} \mathrm{~NC}^{-1}

Option B (

1.138 \times 10^{13} \mathrm{~NC}^{-1}

) is correct because it is the electric field calculated using Coulomb's law with the given charge and radius.

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