Please tell me the answers to the following...
1- When you flip the switch on a flashlight, a ______ is set up in the wire.
2- When charges continually shift from flowing in one direction to flowing in the reverse direction there is an _____ current.
3- when charges always flow in the same directuin, there is an ________ current.
4- What four things determine a object's resistence?
5- Good conductors have a ______ resistence.
6- Why are high resistance materials useful in lightbulbs?
7- What is a superconductor?
8- Compare electrolytes found in a wet cell this those found in a dry cell/
9- Thermocouples are useful for monitoring the tempertures of what three things?
10- How do photocells convert light energy into electrical enrgey?
11- What is the potential difference between two points in circuit called?
12- Which letter is used to represent voltage in equations?
13- What happens to electric current if voltage becomes larger?
2007-03-04
11:21:10
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2 answers
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asked by
Alex K
1
in
Science & Mathematics
➔ Engineering
14- What is the opposition to the flow of electric charges called?
15- Which letter is used to represent resistence in equations?
THANK YOU TO ALLLL THE REALLY SUPER NICE PEOPLE THAT ANSWERED MY QUESTIONS!!!!!!! :)
2007-03-04
11:22:44 ·
update #1
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2007-03-04
11:32:05 ·
update #2