Electric Fields

1) The two objects shown are both positively charged. Which position could possibly have zero electric field?

– A
– B
– C
– D
– They could all have zero electric field

2) What were the two most important forces that Milikan worked with in the oil-drop experiment?

– frictional, electrical

– electric, gravitational

– magnetic, gravitational

– electric, magentic

– none are correct