A spherical conductor of radius \( 10 \mathrm{~cm} \) has a charge of \( 3.2 \times 10^{-7} \mathrm{C} \) distributed un…

A spherical conductor of radius \( 10 \mathrm{~cm} \) has a charge of \( 3.2 \times 10^{-7} \mathrm{C} \) distributed uniformly. What is the magnitude of electric field at a point \( 15 \mathrm{~cm} \) from the centre of the sphere?

\( \left(\frac{1}{4 \pi \epsilon_{0}}=9 \times 10^{9} \mathrm{~N} \mathrm{~m}^{2} / \mathrm{C}^{2}\right) \).

[NEET 2020]