# Coulomb force

A conducting spherical shell is earthed. A positive charge $$q_1$$ is placed at the center and another small positive charge $$q_2$$ is placed at a distance $$r$$ from $$q_1$$. Ignore the effect of induced charge due to $$q_2$$ on the sphere. Then find the coulomb force on $$q_2$$.

Given: $$q_1 = 1\text{ C} , q_2 = 2\text{ C}, r = 1\text{ m} , R = 25 \text{ cm}$$.

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