Figure shows two equipotential lines in $x, y$ plane for an electric field. The scales are marked. The $x-$ component $E_x$ and $y$ -component $E_y$ of the electric field in the space between these equipotential lines are respectively :-
A$+ 100\, V/m, -200\, V/m$
B$-100\, V/m, +200\, V/m$
C$+ 200\, V/m, +100\, V/m$
D$-200\, V/m, -100\, V/m$
Medium
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B$-100\, V/m, +200\, V/m$
b $\mathrm{E}_{\mathrm{x}}=-\frac{\partial \mathrm{V}}{\partial \mathrm{x}} ; \mathrm{E}_{\mathrm{y}}=-\frac{\partial \mathrm{V}}{\partial \mathrm{y}}$
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