the resistance of a metal wire of 1 M length the resistance of a metal wire of length 1m is 26 ohm at 20 degree Celsius if the diameter of the wire is 0.3 mm what will be the resistivity of the metal at that temperature
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Resistivity = Resistance * length / Area of cross section.
The area of cross section is pi*r² = 7.07 mm².
Therefore resistivity = 26 * 1 / 7.07 * 10^-3 = 1.84 * 10^-6 ohm metre.
Hope this helps.....
Please mark my answer as brainliest......
- Maheshwaran.
The area of cross section is pi*r² = 7.07 mm².
Therefore resistivity = 26 * 1 / 7.07 * 10^-3 = 1.84 * 10^-6 ohm metre.
Hope this helps.....
Please mark my answer as brainliest......
- Maheshwaran.
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