In the figure shown spheres $S_1,S_2,S_3$  have radii R, R/2, R/4 respectively.  $C_1,C_2$ and $C_3$  are their centres lying in the same plane. Angle $C_1,C_2,C_3$  is right angle. Sphere  $S_3$ has a uniformly spread volume change density $4\rho$ . The other spheres $S_1$  and $S_2$  have uniform volume charge density $\rho$  and $2\rho$  respectively. Then

The electric field at a point A at a distance R/8 from $C_3$  on the  $C_2{C}_3$ is  $\frac{\sqrt{5}\rho R}{6{\epsilon }_0}$

The electric field at point B at a distance R/8 from $C_2$  on the line $C_2{C}_3$  is  $\frac{\sqrt{43}\rho R}{24{\epsilon }_0}$

The electric field at point A at a distance R/8 from $C_3$  on the line $C_2{C}_3$  is  $\frac{\sqrt{41}\rho R}{24{\epsilon }_0}$

The electric field at point B at a distance R/4 from $C_2$ on the line $C_1{C}_3$  is  $\frac{\sqrt{5}\rho R}{6{\epsilon }_0}$