The electric potential V at any point (x,y,z) is given by V=3x² where x is in meters and V in volts. The electric field at the point (1m, 0, 2 m) is — a) 6 V/m along the -x-axis. b) 6 V/m along +x-axis. c) 1.5 V/m along the -x-axis. d) 1.5 V/m along +x-axis.
Video Solution :
Hint : Use the formula E=-dV/dr
