The electric potential V at any point in space is given V=20x3 volt, where x is in meter. Calculate the electric intensity at point P(1,0,2).
we know that the following relation exists between electric field (E) and potential (V)
E = -dV/dx
here
V = 20x3 volts
so,
E = d(20x3)/dx
or
E = 60x2
here
x = 1
thus,
E = 60.(1)2 = 60 N/C