Electrostatics Question 8

Question 8 - 2024 (27 Jan Shift 2)

The electric potential at the surface of an atomic nucleus $(\mathrm{z}=50)$ of radius $9 \times 10^{-13} \mathrm{~cm}$ is $\times 10^{6} \mathrm{~V}$

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Answer: (8)

Potential $=\frac{k Q}{R}=\frac{k . Z e}{R}$

$=\frac{9 \times 10^{9} \times 50 \times 1.6 \times 10^{-19}}{9 \times 10^{-13} \times 10^{-2}}$

$=8 \times 10^{6} \mathrm{~V}$