A spherical shell of radius has a charge uniformly distributed over it

PHYSICS · Single correct · AP · Physics C: Electricity and Magnetism · Electric Charges Fields and Gauss's Law · Electric Charges Fields and Gauss's Law

Problem

A spherical shell of radius R=1.5 cmR=1.5\,\text{cm} has a charge q=20 μCq=20\,\mu\text{C} uniformly distributed over it. The force exerted by one half over the other half is (1) zero (2) 10−2 N10^{-2}\,\text{N} (3) 500 N500\,\text{N} (4) 2000 N2000\,\text{N}

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