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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 · 2 answers · 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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SOMEONE

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2007-03-04 11:32:05 · update #2

2 answers

1 current
2 AC
3 DC
4 material, cross sectional area, temperature
5 low
6 their resistance causes them to heat up and glow
7 one which at very low temperature exhibits close to zero resistance.
8 liquids such as sulfuric acid versus alkaline pastes
9 high temperature solids, liquids, gases
10 they have a photosensitive material in them that captures energy from photons striking it and make an electric current from those electrons flowing.
11 differential voltage
12 V for volts
13 current increases

2007-03-04 12:18:51 · answer #1 · answered by Rich Z 7 · 0 0

1-I DON'T KNOW
2-REVERSE OR INTERCHANGING
3-CONGRUENT OR SIMILAR
4-IM NOT SURE
5-LARGE
6-TO CONDUCT THE ELECTRICAL CHARGE
7-A VERY GOOD TRANFERRER OF ELECTRICITY
8-IM NOT SURE
9-I DON'T KNOW
10-I DON'T KNOW
11-IM NOT SURE
12- "W" FOR WATTZ
13- THE CURRENT DECREASES

WELL I HOPED THAT HELPED U!

2007-03-04 11:35:16 · answer #2 · answered by emii 1 · 0 0

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