Torsion balance:  an instrument designed to measure small electrostatic forces by the twisting of a thin wire


Coulomb's Law: The magnitude of the force acting on two charged objects is directly proportional to the charges and the distance of separations

Fα q1q2r2



Assignment 4 (Part Two)

Open your saved Assignment 4 file, and complete Part Two.   When you are finished, upload your document to the Assignment 4 page.  Move to the next page to find the Assignment 4 page.