Long description

The centre of sphere A is placed at a horizontal distance of 10.0 centimeters to the left of the centre of the test charge sphere. The centre of sphere B (first position) is placed at a vertical distance of 10.0 centimeters above the centre of the test charge. The centre of sphere B (second position) is placed at a horizontal distance of 10.0 centimeters to the left of the centre of sphere B (first position). A force arrow labelled F subscript x from the test charge points horizontally to the right.