Which of the following is a common example of a conductor?

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Study for the Con Edison Basic Electric Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which of the following is a common example of a conductor?

Explanation:
Conduction happens when a material has free charge carriers that can move easily under an electric field. Metals provide a sea of free electrons, so current can flow with little resistance. Silver, in particular, has exceptionally high electrical conductivity, making it a quintessential conductor. In contrast, rubber, glass, and air resist current under normal conditions because their electrons aren’t free to move; they act as insulators. Air can conduct only when the air is ionized by a high voltage, which is not the usual state. So silver is the common example of a conductor.

Conduction happens when a material has free charge carriers that can move easily under an electric field. Metals provide a sea of free electrons, so current can flow with little resistance. Silver, in particular, has exceptionally high electrical conductivity, making it a quintessential conductor. In contrast, rubber, glass, and air resist current under normal conditions because their electrons aren’t free to move; they act as insulators. Air can conduct only when the air is ionized by a high voltage, which is not the usual state. So silver is the common example of a conductor.

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