From the picture, when object A is rubbed against object B and then object B is placed near object C,object C will be sucked into moving next to object B. Which are objects A, B, and C, respectively?
Paper, electric wire, plastic
Fabric, plastic pipe, hair
Steel ruler, paper, dust particles
Wooden stick, pan, wire
# 3
When rub 2 balloons with dry cloth and place them close together, why is there a force of repulsion?
Because both balloons are electrically neutral.
Because different types of electrical charges are created on the balloon.
Because the same type of electrical charge is created on the balloon.
Because there is an exchange of electrical charge between the two balloons.
# 4
Which one is responsible for distributing electrical energy in an electrical circuit?