147k views
2 votes
Which of the following materials is an insulator against electric current?

A. Aluminum foil

B. A silver spoon

C. A copper penny

D. A glass pane

User AndaluZ
by
5.2k points

2 Answers

3 votes
D. A glass pane
..........
User Hamza Khursheed
by
5.1k points
4 votes

Answer: D. A glass pane

Explanation: Glass is a poor conductor of electricity. Aluminum, copper and silver are all good conductors of electricity.

A pane of glass can be used as an insulator against electric current because it is a poor conductor of heat.

Glass is made up of silica which is abundant in nature.

User AbrahamB
by
5.6k points