1. What do you call a material which allow electricity and heat to pass through it?
A. Insulator
B. Electrons
C. Circuit
D. Conductor
2. What do you call a material which do not allow electricity and heat to pass through it?
A. Insulator
B. Conductor
C. Circuit
D. Electrons
3. Which of the following materials are poor conductors of heat?
A - Steel B - Plastic C - Aluminum D - Bamboo
A. B & D
B. A, B & C
C. B only
D. D only
4. Which group materials are conductors of heat and electricity?
A. iron, gold, paper, copper
B. Copper, silver, iron, gold
C. Steel, nickel, rubber, silk
D. Aluminum, brass, plastic, oil
5. why do electricians wear rubber gloves while working with electricity?
what is the purpose of rubber gloves?
A. To keep the electrician dry
B. To create an electrical circuit
C. To produce electricity
D. To protect the electrician​