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Two parallel cylindrical wires made of lead have diameters D=4mm and the distance between their axes is L=5mm.

Both wires are in superconductive state. The wires carry currents I=30A each in opposite directions.

What is the force of magnetic relpulsion F between the wires per unit length (per 1 meter)?

Note:
Meissner effect: magnetic field does penetrate inside bulk lead (type I superconductor).


I asked this question 16 times in physics section, and got no answer. Maybe matematicians could help me.
Easy-to-use magnetic force calculator can be found here:
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/wirfor.html

2007-08-16 06:48:51 · 3 answers · asked by Alexander 6 in Science & Mathematics Mathematics

3 answers

I don't know why you don't just use two wires made of gold to create a "hyperconductive" state. Since it appears that a "red shift" effect could occur, it appears therefore that an equal magnetic force between the wires is created. Using a cesium chamber may yield different results. It is also plausible deniability that such a magnetic force is "not of this world." =<)

2007-08-16 14:39:34 · answer #1 · answered by Sir Grandmaster Adler von Chase 7 · 1 1

Sorry I don't have an answer for you but I have to say tinkertailorcandlestickmaker has made a good point. Besides if you haven't gotten an answer after a couple times asking the question, why would you think a third or in your case a 17th time would work. After a couple times what makes you think that someone is going to pop up that knows the answer. Best to find another source than Yahoo Answers. How about a physics teacher?

2007-08-24 06:04:36 · answer #2 · answered by Steven 4 · 0 0

Take a look at item 20 in "Don'ts" at this link: http://answers.yahoo.com/info/community_guidelines.php

Granted, "excessively" is not defined.

2007-08-22 05:37:49 · answer #3 · answered by tinkertailorcandlestickmaker 7 · 1 1

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