11A
YOUR ANSWER:
No. It is not possible to cause electron flow in an insulator.
(From P1-19B)
Hold on a minute. Let's stop and think about this. Haven't you ever seen sparks when you pulled the plug
from an electric socket? These sparks are nothing more than electron flow and they are flowing through air. And
we said air was an insulator. Or take the spark plug on a car. Doesn't the spark jump from one contact to the
other? The only way that it can get there is to travel through air. Again, air is an insulator. Go back to
Page 1-19B and read the question again.
11B
YOUR ANSWER:
Cost, temperature, and melting point.
(From P1-20B)
Sorry, bad guess. Two of the items are right. They are the cost and the melting point, but temperature is
wrong. You are getting the considerations for choosing a conductor confused with the factors that determine the
resistance of a material. Temperature was one of the factors that determine the resistance of a conductor.
Remember, conductors have to be joined together in order to construct a piece of equipment, so one of the things
to consider would have to be the ability to be fused or soldered.
Go back to Page 1-20B and choose the correct answer.
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