Answer:[tex]W=3.36\times 10^{-11}\ J[/tex]
Explanation:
Given
Electric Potential difference is [tex]\Delta V=2.1\times 10^8\ V[/tex]
Charge of Electron [tex]q=1.6\times 10^{-19}\ C[/tex]
Change in Electric Potential Energy when electron moves from the ground to the cloud require certain amount of work to move electron against a potential from Ground to cloud
Change in electric Potential Energy [tex]=q\times \Delta V[/tex]
[tex]W=1.6\times 10^{-19}\times 2.1\times 10^8[/tex]
[tex]W=3.36\times 10^{-11}\ J[/tex]
