Find the electric field strength vector if the potentail of this field has the form `varphi = ar`, where is a constatn vector, and `r` is the radius vector of point of the field.

Determine the electric field strength vector if the potential of this field depends on X, coordinates as V = 10 axy

Find the electric field strength vector at the centre of a ball of raiduius R with volume charge density rho implies ar , where a is a constant vector, and r is a radius vector drawn from the ball's centre.

Is electric field scalar or vector ? Why ?

Determine the electric field strength vector if the potential of this field depends on x, coordinates as (a) V = a (x^2 — y^2) (b) V = axy where, a is a constant.

Determine the electric field strength vector if the potential of this field depends on x, coordinates as (a) V = a (x^2 — y^2) (b) V = axy where, a is a constant.

Define electric field write its formula vector form.

Determine the electric field strength vector in a region if in space the potential of this field depends on x and y coordinates as V=a(x^(2)-y^(2)) .

The expression for electric field in vector form is