A) 3.25 V/m
B) 300 V/m
C) 325 V/m
D) 32.5 V/m
E) None of these
Correct Answer: D
Solution :
In equilibrium, \[eE=mg\] \[\Rightarrow \] \[E=\frac{mg}{e}\] \[=\frac{9.75\times {{10}^{-15}}\times 10}{30\times {{10}^{-16}}}\] \[=32.5\,V\text{/}m\]You need to login to perform this action.
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