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21 March, 22:32

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. 22 March, 02:12
    0
    D. A glass pane

    ...
  2. 22 March, 02:27
    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.
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