Q. The potential function of an electrostatic field is given by V = 2x². Determine the electric field strength at the point (2m, 0, 3m).
(a) $ \large \vec{E} = 4 \hat{i}$ N/C
(b) $ \large \vec{E} = -4 \hat{i}$ N/C
(c) $ \large \vec{E} = 8 \hat{i}$ N/C
(d) $ \large \vec{E} = -8 \hat{i}$ N/C
Ans: (d)