An isolated sphere of radius R contains a uniform volume distribution of positive charge. Which of the curve on the graph below correctly illustrates the dependence of the magnitude of the electric field of the sphere as a function of the distance r from its centre

C

$E=\frac{\rho}{3 \epsilon_0} r$ for inside point and $E=\frac{K Q_{\text {TOTAL }}}{r^2}$ for outside point and it will be represented by C.