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प्रश्न
Find the electric potential at the surface of an atomic nucleus (Z = 50) of radius 9 × 10-13 cm.
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उत्तर
Electric potential, V = `1/(4piε_0) (Ze)/r`
= `(9 xx 10^9 xx 50 xx 1.6 xx 10^-19)/(9 xx 10^-13 xx 10^-2)`
= 8 × 106 V
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