Electrostatics

Question: If an insulated non-conducting sphere of radius R has charge density $\rho $. The electric field at a distance $r$from the centre of sphere $(r < R)$ will be

1) $\frac{{\rho \,R}}{{3{\varepsilon _0}}}$

2) $\frac{{\rho \,r}}{{{\varepsilon _0}}}$

3) $\frac{{\rho \,r}}{{3{\varepsilon _0}}}$

4) $\frac{{3\rho \,R}}{{{\varepsilon _0}}}$

Solution:

Explanation: Explanation

electric-field-potential

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