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  • The electric field required to keep a water drop of mass m just to remain suspended, when charged with one electrons, is-Option: 1 mg<d

The electric field required to keep a water drop of mass m just to remain suspended, when charged with one electrons, is-

Option: 1

mg


Option: 2

\frac{m g}{e}


Option: 3

 emg 


Option: 4

\frac{e m}{g}


Answers (1)

best_answer

 

from figure,
\mathrm{\begin{aligned} e E & =m g \\ E & =\frac{m g}{e} \end{aligned} }                                      

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mansi

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