In: Physics
The x-commponent of the electric field is,
Ex = dV/dx
= d/dx[(2.0 V/m2)x2 - (3.0 V/m2)y2]
= (2.0 V/m2)(2x)
= (4.0 V/m2)x
The y-commponent of the electric field is,
Ey = dV/dy
= d/dy[(2.0 V/m2)x2 - (3.0 V/m2)y2]
= -(3.0 V/m2)(2y)
= -(6.0 V/m2)y
Thus, the vector form of the electric field is,
E = Ex + Ey
= [(4.0 V/m2)x] i - [(6.0 V/m2)y] j
Here, i and j are unit vectors along the x and y axis respectively.