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Calculate the electric potential at the ...

Calculate the electric potential at the surface of a gold nucleus. Given radius of nucleus = `6.6 xx 10^-15 m` and atomic wight of gold is 79.

Text Solution

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Charge on the gold nucleus = q = Ze
`q=79e`
`q=79xx1*6xx10^(-19)C`
Radius of gold nucleus `r=6*6xx10^(-15)m`
Potential at the surface of gold
`=V=(1)/(4pi epsi_(0))(q)/(r )`
`rArr V=9xx10^(9)xx(79xx1*6xx10^(-19))/(6*6xx10^(-15))`
`rArr V=1*72xx10^(7)V`
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