Two objects exert an electric force of size F on each other. If the charge on each object is doubled, the electric force will now be, 1/4 F B. F C. 2F D. 4F Two objects exert an electric force of size F on each other. If the objects are moved three times closer together, the electric force will now be, 1/3 F B. 3F C. 1/9F D. 9F Use Information for Questions 29-31 Electric charges can be collected in a jar, which is referred to as a capacitor. The diagram shows a Leyden that is made by covering the inner and outer surfaces of a glass jar with pieces of metal foil. A metal rod protrudes through the top of the jar and a metal chain connected to the rod touches the metal foil inside the jar. A rubber rod is rubbed with fur and touched to the metal knob on the top of the jar. What is the charge on the metal foil on the inside of the jar? Positive Negative Neutral What is the charge on the metal foil on the outside of the jar? Positive Negative Neutral If a person (who is insulated from the ground) touched one finger to the metal knob, and another finger to the metal foil on the outside of the jar, __________ would flow through them from the _________ to the ______. Electrons, knob, outer foil Electrons, outer foil, knob Protons, knob, outer foil Protons, outer foil, knob Answers:
Two objects exert an electric force of size F on each other. If the charge on each object is doubled, the electric force will now be, 1/4 F B. F C. 2F D. 4F Two objects exert an electric force of size F on each other. If the objects are moved three times closer together, the electric force will now be, 1/3 F B. 3F C. 1/9F D. 9F Use Information for Questions 29-31 Electric charges can be collected in a jar, which is referred to as a capacitor. The diagram shows a Leyden that is made by covering the inner and outer surfaces of a glass jar with pieces of metal foil. A metal rod protrudes through the top of the jar and a metal chain connected to the rod touches the metal foil inside the jar. A rubber rod is rubbed with fur and touched to the metal knob on the top of the jar. What is the charge on the metal foil on the inside of the jar? Positive Negative Neutral What is the charge on the metal foil on the outside of the jar? Positive Negative Neutral If a person (who is insulated from the ground) touched one finger to the metal knob, and another finger to the metal foil on the outside of the jar, __________ would flow through them from the _________ to the ______. Electrons, knob, outer foil Electrons, outer foil, knob Protons, knob, outer foil Protons, outer foil, knob Answers: