Question

If an insulated non-conducting sphere of radius R has uniform volume charge density r. The electric field at a distance r from the centre of sphere (r > R) will be-

• A. $\frac{\rho R}{3\varepsilon_{0}}$
• B. $\frac{\rho r}{\varepsilon_{0}}$
• C. $\frac{\rho R^{3}}{3\varepsilon_{0}r^{2}}$
• D. $\frac{3\rho R}{\varepsilon_{0}}$

Answer 1

Answer: (C)

$\frac{\rho R^{3}}{3\varepsilon_{0}r^{2}}$

Answer 2

E =$\frac { 1 } { 4 \pi \varepsilon _ { 0 } }$= $\frac { 1 } { 4 \pi \varepsilon _ { 0 } }$=