Physics

Problem

A spherical shell of radius

R=1.5\,\text{cm}

has a charge

q=20\,\mu\text{C}

uniformly distributed over it. The force exerted by one half over the other half is (1) zero (2)

10^{-2}\,\text{N}

(3)

500\,\text{N}

(4)

2000\,\text{N}