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Resistivity allows us to compare different conductors' abilities to transmit electric current that is independent of the physical dimensions of the conductors.
Resistivity is defined as 'the resistance of a unit length of a substance with a uniform cross-section'. In SI, the unit of measurement of resistivity is the ohm metre; in US customary units, it is expressed in ohm circular mil per foot.
So, to finally answer your question, the resistivity of copper is 17.5x10-9 ohm metres at 20oC. To find the resistance of a copper conductor, you can then use the equation:
resistance = resistivity x (area / length)
Additional AnswerThe resistivity of copper depends on the temperature it which it is measured. At 25°C, it is about 17 nΩ.m, or 1.7 µΩ.cm.
The resistance of a conductor is then p * L / A, where p is the above number.
So for a wire with a length of 1 m (i.e. 100 cm), and a cross sectional area of 2 cm², the resistance is 17e-6 * 100 / 2 = 85 µΩ
What else can I help you with?
What is the state of Copper at 20 degrees celsius?
At 20 degrees Celsius, copper is in its solid state. Copper has a melting point of 1,085 degrees Celsius, so at 20 degrees Celsius, it remains a solid metal.
Which is colder 18 degree Celsius or 20 degree Celsius?
18 degrees Celsius is colder than 20 degrees Celsius.
Which is colder -18 degree Celsius or -20 degree Celsius?
The answer is -20º celsius is colder than -18º celsius.
What is 100 degree Celsius minus 20 degree Celsius?
100 degrees Celsius minus 20 degrees Celsius is equal to 80 degrees Celsius.
What degree Fahrenheit is 20 degrees Celsius?
20 degrees Celsius = 68 degrees Fahrenheit.
What is 20 degree Celsius in farihight?
20 degree Celsius = 68 degree Fahrenheit
What is the state of Copper at 20 degrees celsius?
At 20 degrees Celsius, copper is in its solid state. Copper has a melting point of 1,085 degrees Celsius, so at 20 degrees Celsius, it remains a solid metal.
What is 20 degrees Celsius in fahrenhigt?
20 degree Celsius = 68 degree Fahrenheit
What state is copper at 20 degrees celsius?
At 20 degrees Celsius, copper is in a solid state. Copper melts at 1,085 degrees Celsius, so at 20 degrees Celsius, it remains solid.
Which is colder 18 degree Celsius or 20 degree Celsius?
18 degrees Celsius is colder than 20 degrees Celsius.
Which is colder -18 degree Celsius or -20 degree Celsius?
The answer is -20º celsius is colder than -18º celsius.
How much copper sulfate would be needed to make a saturated solution of copper sulfate with 400g of water at 20 degree celsius?
To prepare a saturated solution of copper sulfate at 20 degrees Celsius, you would need to dissolve approximately 203 grams of copper sulfate in 400 grams of water. This is based on the solubility of copper sulfate in water at that temperature.
What is 100 degree Celsius minus 20 degree Celsius?
100 degrees Celsius minus 20 degrees Celsius is equal to 80 degrees Celsius.
A copper coil has a resistance of 100 at 20 degree Celsius What is its resistance at 50 degree Celsius if the temperature coefficient of copper is 3.93degree Celsius?
Using the temperature coefficient of copper, the change in resistance can be calculated using the formula: ΔR = R₀ * α * ΔT. Plugging in the values, we get ΔR = 100 * 3.93 * (50 - 20). So, the increase in resistance is 1179 ohms. Therefore, the resistance at 50 degrees Celsius would be 100 + 1179 = 1279 ohms.
How manny f is 20 c?
20 degree Celsius = 68 degree Fahrenheit
Which degrees is hotter 20 degree c or 75 degree c?
75 degree Celsius is hotter than 20 degrees Celsius.
Is lead a good conductor of electricity in all the states?
The resistivity of lead is 208 n.Ohm.m (at 20 degrees celsius) in comparison, the best conducter, silver, has a resistivity of 15,87 n.Ohm.m widely used conducter, copper, has a resistivity of 16,78 n.Ohm.m , considered to be a good conductor resistivity of iron, considered not to be the a good conductor at all is 97 n.Ohm.m So no, lead is not a good conducter. But keep in mind, it's still a conductor, don't use it as an isolation!
