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25 June, 11:00

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

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Answers (2)
  1. 25 June, 11:17
    0
    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.
  2. 25 June, 12:40
    0
    D. A glass pane

    ...
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