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Electrical resistivity is a measure of how a material opposes the flow of electric current. Copper is used for electrical lines because it has a low resistance relative to its cost. Gold and silver also have a low resistance, but imagine how expensive the power cord for your computer would be if it were made of gold!
What else can I help you with?
Why does the electrical resistivity of a conductor does not depend on its dimensions?
resistivity and resistance are two diff. things...........resistance depends on length and thickness resisitivity too depends on the area and length resistivity=resistance*area/length
How do you work out resistance with voltage and joules?
Resistance of a conductor is defined by the specific resistivity, area of cross section and the length of the conductor. R = rL/A, where R is resistance in OHMs, r is specific resistance, L length in mm, A is area of cross section in sq mm
What device is used to measure the resistance of a resistor?
You can use a multi-meter to measure resistance. The specific portion of the meter for measuring resistance is called an ohmmeter.
What happens to current flow when the resistance is higher than normal?
For a specific voltage, current flow is inversely proportional to resistance.
What are mathematical relationship between resistance and specificconductivity constant?
Cell constant(C) = Resistance(R) X Specific Conductivity(K)
Why does nichrome get hot?
Nichrome has a high electrical resistivity.
Why does the electrical resistivity of a conductor does not depend on its dimensions?
resistivity and resistance are two diff. things...........resistance depends on length and thickness resisitivity too depends on the area and length resistivity=resistance*area/length
How long was the jewish resistance?
It was not a specific event. Resistance appeared where there was oppression.
Is higher specific resistance more conductive?
No, higher specific resistance means lower conductivity. Specific resistance is the resistance of a material per unit length and cross-sectional area, so a higher value indicates that the material resists the flow of electric current more effectively. Conversely, materials with lower specific resistance values are more conductive.
What are the Diff songs in diff region?
It means Different songs in different regions . In diff places have diff folks .
Why a megger fail to distinguish diff readings of d insulation resistance in d upper range of its scale?
More information is needed as to what your terminology of D insulation is.
What is the formula for conductivity?
1/specific resistance
What is the specific resistance of pure silicon?
The specific resistance of pure silicon is around 2300 ohm-cm at room temperature.
What are the rules for electricity resistance?
Resistance of a conductor is defined by the specific resistivity, area of cross section and the length of the conductor. R = rL/A, where R is resistance in OHMs, r is specific resistance, L length in mm, A is area of cross section in sq mm
What does diff mean?
Diff is short for difference.
Why the internal resistance should be high in operational amplifiers?
High input impedance implements the operation of the external feedback circuitry (e.g. diff. amplifiers vs. comparators).
What is the specific resistance of rubber?
The specific resistance of rubber depends on its composition and properties. However, it typically ranges from 10^10 to 10^16 ohm-meter.
