Answer:
121.142 V/m
Explanation:
A and B are on two equipotential line.
Equipotential line are imaginary lines in space along which the potential does not change.
to find electric field at the midpoint C
we use the formula
[tex]E= -\frac{dV}{dx}[/tex]
= [tex]\frac{V_1-V_2}{X_2-X_1}[/tex]
=[tex]\frac{5.2-1.8}{2.8\times10^{-2}}[/tex]
= 121.142 V/m
