The electric potential d(x) in free space in a charge free region is given by ộ(x) = 2e+gx)- sk. cven tnat x-component of electric field e, and o are zero at th

The electric potential d(x) in free space in a charge free region is given by ộ(X) = 2e+gX)- SK. CVen tnat x-component of electric field E, and o are zero at the origin then g) s (A) 4e7x- 9 (B) 9x-2e (C) -2ex+ 9x2 (D) cui 103 ol/ contoine ooce 40-27 ka and