ASVAB Electronics Information Practice Test 94053

Question 1 of 5
Conductive Materials

All conductors have resistance and the amount of resistance varies with the element. But, resistance isn't the only consideration when choosing a conductor as the most highly conductive elements like silver and gold are also more expensive and more brittle than slightly less conductive elements like copper. A balance needs to be struck between the electrical qualities of a material and its cost and durability.

Silver and gold are among the most highly conductive elements. Why is copper used much more often as a conductor in electrical circuits?

silver and gold are costly

silver and gold are brittle

copper is durable and relatively cheap

all of these