Question

The electric potential V at any point (x,y,z) is given by V = 3x² where x is in metres and V in volts. The electric field at the point (1m,0,2m) is -

(a) 6 V/m along -x - axis

(b) 6 V/m along +x - axis

(c) 1.5 V/m along -x - axis

(d) 1.5 V/m along +x - axis

Answer 1

Option : (a) 6 V/m along -x - axis