1.       Ofthe adhering to substances, the worst conductor is:

A.      Air.

You are watching: Which of the following substances is the best conductor of electricity

B.      Copper.

C.      Iron.

D.      Saltwater.

2.       Ofthe adhering to substances, the ideal conductor is:

A.      Air.

B.      Copper.

C.      Iron.

D.      Saltwater.

3.       Movementof holes in a semiconductor:

A.      Islike a flow of electrons in the very same direction.

B.      Ispossible just if the existing is high enough.

C.      Resultsin a specific amount of electric current.

D.      Causesthe material to prevent conducting.

Jan 27 2021 11:08 AM

1 authorized Answer


Udita Sanswered top top January 29, 2021
5Ratings,(15 Votes)

1. Answer: A. Air

Explanation: Air is the worst conductor because that molecules space not in consistent contact through one another unlike a solid. Warm by conduction passes more quickly in a solid because the molecules" vibrations...
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