Acrux
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Calculate the resistance of a uniform wire of diameter 0.32mm and length 5.0m the resistivity of the material - 5x10^-7.

p=RA/L

Confused with the prefixes.
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Kevin De Bruyne
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(Original post by Acrux)
Calculate the resistance of a uniform wire of diameter 0.32mm and length 5.0m the resistivity of the material - 5x10^-7.

p=RA/L

Confused with the prefixes.
The units of resistivity are ohm metres, or ohms * m.

I can't figure out what the prefixes are in that question :s
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Acrux
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Stonebridge
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(Original post by Acrux)
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Perhaps if you explained what your problem is.

You have the formula and the values to plug into it. (Calculate area A from the diameter given)

What answer do you get? Let's see what you've done.
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Acrux
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(Original post by Stonebridge)
Perhaps if you explained what your problem is.

You have the formula and the values to plug into it. (Calculate area A from the diameter given)

What answer do you get? Let's see what you've done.
worked it out now.
Was using wrong prefix :rolleyes:
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