The electric potential at the surface of an atomic nucleus (z=50) of radius

The Electric Potential At The Surface Of An Atomic Nucleus Physics QuestionThe Electric Potential At The Surface Of An Atomic Nucleus Physics Question

The electric potential at the surface of an atomic nucleus (z=50) of radius 9.0×10⁻¹³ cm is

Options

(a) 80 volt
(b) 8×10⁶ volt
(c) 9 volt
(d) 9×10⁵ volt

Correct Answer:

8×10⁶ volt

Explanation:

V = (1 / 4πε₀). q/r

= [9 × 10⁹ × 50 × 1.6 × 10⁻¹⁹] / 9 × 10⁻¹⁵

= 8 × 10⁶ volt

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