A 1.0 × 10−6 C test charge is 40.0cm from a 3.2 × 10−3 C charged sphere. How much work was
required to move it there from a point 1.0 × 102 cm away from the sphere?
what formula(s) should be used to calculate work...?
required to move it there from a point 1.0 × 102 cm away from the sphere?
what formula(s) should be used to calculate work...?