Multiple Choice
Which characteristic is common to all electrical insulators?
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24. Electric Force & Field; Gauss' Law
Electric Charge
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Which of these materials is an insulator?
A
Copper
B
Aluminum
C
Rubber
D
Gold
Verified step by step guidance1
Understand the concept of electrical conductivity: Conductors allow the flow of electric current, while insulators resist it.
Identify the materials listed: Copper, Aluminum, Rubber, and Gold.
Recall that metals like Copper, Aluminum, and Gold are good conductors of electricity due to their free electrons.
Recognize that Rubber is a non-metal and does not have free electrons to conduct electricity, making it an insulator.
Conclude that among the given options, Rubber is the material that acts as an insulator.
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