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2007-03-01 07:16:50 · 3 answers · asked by Gee 1 in Science & Mathematics Physics

3 answers

Resistivity is measured or given in ohm-meters.

There is the resistivity constant (rho or small p) for resistivity. Use the length and area of a piece of metal multipled by the Resistanc eto arrive at the sheet resistivity (just area) or multiply by length to get total resistivity rho.

You have not provided enough information. Maybe you are providing the Resistance for a given length and arae of a metal sample and need to calculate the resistivity.

Resistivity for metals are very low numbers such as:
Metal Resistivity ohm-meter
Silver[1] 1.47 × 10−8
Copper[1] 1.72 × 10−8
Gold[1] 2.44 × 10−8
Aluminium[1] 2.82 × 10−8
Tungsten[1] 5.6 × 10−8
Iron[1] 1.0 × 10−7
Brass[2] 0.8 × 10−7
Platinum[1] 1.1 × 10−7
Lead[1] 2.2 × 10−7
Manganin[3] 4.4 × 10−7
Mercury[3] 9.8 × 10−7
Nichrome[1][4] 1.10 × 10−6
Carbon[1][5] 3.5 × 10−5

2007-03-01 07:28:42 · answer #1 · answered by KingGeorge 5 · 0 0

Take a look at this link about resistivity that might help you.

If the resistivity is straight-up 1.282 Ohm-meters, you're probably looking at a specialized alloy designed as an insulator. Check your numbers to make sure you are at the right scale. Most metals are pretty good at conducting electricity, and therefore have very small resistivity, typically along 10^-7 or smaller.

2007-03-01 07:29:58 · answer #2 · answered by wheresdean 4 · 0 0

a semiconductor. such as silicon metal

2007-03-01 07:41:21 · answer #3 · answered by Dr W 7 · 0 1

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