Question text
28 A student investigates electrostatic charge using a balloon and a cloth. The balloon and cloth are initially uncharged. The student rubs the balloon with the cloth. The balloon gains a negative charge of magnitude Q. The cloth becomes charged and a force acts between the balloon and the cloth. Which row correctly describes the magnitude and sign of the charge on the cloth and the type of force between the balloon and the cloth? magnitude of sign of type of force charge on cloth charge on cloth A equal to Q positive attraction B equal to Q negative repulsion C greater than Q positive repulsion D greater than Q negative attraction
28 A student investigates electrostatic charge using a balloon and a cloth. The balloon and cloth are
initially uncharged.
The student rubs the balloon with the cloth. The balloon gains a negative charge of magnitude Q.
The cloth becomes charged and a force acts between the balloon and the cloth.
Which row correctly describes the magnitude and sign of the charge on the cloth and the type of
force between the balloon and the cloth?
magnitude of sign of
type of force
charge on cloth charge on cloth
A equal to Q positive attraction
B equal to Q negative repulsion
C greater than Q positive repulsion
D greater than Q negative attraction
Select your answer: