In an electric field, the potential is V = 343/r. Find the electric field at r ⃗ \vec{r} r = 3 i ^ + 2 j ^ + 6 k ^ \hat{i}+2\hat{j}+6\hat{k} i ^ + 2 j ^ ​ + 6 k ^

Options

• Option A

  21$\hat{i}+14\hat{j}+42\hat{k}$

• Option B

  3$\hat{i}+2\hat{j}+6\hat{k}$

• Option C

  (1/7)(3$\hat{i}+2\hat{j}+6\hat{k}$)

• Option D

  -(3$\hat{i}+2\hat{j}+6\hat{k}$)