Which of the following is a good conductor?
A) A plastic doll
B) Wooden stick
C) A silver spoon
D) A glass vase
Which of the following pairs consist of a conductor and an insulator of electricity?
A) Wood and wool
B) Copper and steel
C) Silver and gold
D) Silver and rubber
Plastic, wood and bakelite are some good ____ of electricity.
Electrical wires and parts of electrical appliances are covered with ____.
Materials, which do not allow electricity to pass through them easily, are called ____ of electricity.
____ allow electric current to pass through them.
Which of the following is a good conductor of electricity?
Which of the following is an insulator?
Metals are ____ of electricity.
Switches, electrical plugs and sockets are mainly made up of conducting materials.