In a certain region of space the electric field increases radially as `vec E=90r(-hat r)` .The electric charge contained within a sphere of radius `2m` centred at the origin is:

The electric field in a region is radially outward with magnitude E=Ar_(0) . The charge contained in a sphere of radius r_(0) centred at the origin is

The electric field in a region is radially outward with magnitude E=Agamma_(0) . The charge contained in a sphere of radius gamma_(0) centered at the origin is

The electric field in a region is radially outward with magnitude E=alpha r .The charge contained in a sphere of radius R centered at the origin is K times10^(-10)C if alpha=100V/m^(2) and "R=0.30m" .The value of K is

The electric field in a region is radially outward with magnitude E = 2r. The charge contained in a sphere of radius a = 2m centerd at the origin is 4x piepsi_(0) . Find the value of x.

The electric field in a certain region is acting radially outwards and is given by E=Ar. A charge contained in a sphere of radius 'a' centred at the origin of the field, will given by

The electric field in a region is radially outward and varies with distance r as E = 250 r ( volt per square metre).Calculate the charge contained in a sphere of radius 0.2 m centeredat the origin.