Iron has a resistivity of 9.71×10° Nm at 20°C. What will the resistivity of Lead when then temperature is increased to 135°C. (Take a as 6.51×10³)
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- A conducting wire is 25 cm long and has a diameter of 0.5 mm. You measured the resistance of the wire to be 100. Calculate the resistivity of the material.Given the electric field through a write is 0.50 V/m. The material used to make the wire has 6.52×10²8 electrons per m³. If the material has a conductivity of 1.7×10 m, calculate the drift velocity of the electrons.Please don't provide handwritten solution ....
- At what temperature will silver have a resistivity that is four times the resistivity of iron at room temperature?Help me with this questionProblem 5: A nichrome rod of length LN 58 cm is connected in series (end to end) to a carbon rod of length Lc 8 cm. Both rods have cross-sectional areas of A 55 mm2. At T0 20° C the restístivity of nichrome is ρΝ-1.50 x 10-6 Ω-m and the resistivity of carbon is pc 3.50 x 10-5 Q-m. The temperature coefficient of nichrome is positive with value a-0.4 x 10-3 °C-1. The temperature coefficient of carbon is negative with a value ac--0.5 x 10-3 °c1. The nonlinear dependence of the resistivity on temperature T can be written as ρ ea(T-To) .odu @ theexpertta.com - tracking id: 2N74-2F-82-4A-BAAB-13167. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. A Part (a) Write an expression for the total resistance of the nichrome-carbon combination as a function of temperature in terms of quantities given in the introduction. Simplify your answer as much as…
- A copper wire has a square cross section 2.3mm on a side. The wire is 4m long and carries a current of 3.6 A. The density of the free electrons is n = 8.5 * 1029 m-3. The resistivity of Copper is 1.7 * 10-8 ohmmeter. What is the current density and the electric field inside the wire?Silver at room temperature is found to have a resistivity of 1.59×108 №∙m. If the temperature is increased to 150°C what will be the resistivity of the silver?Aluminum at 20°C has a resistivity of 2.65×10°8 №∙m²¹ if the temperature is increased to 60°C estimate the new resistivity.
- How long is a tungsten wire if it has a diameter of 0.109 x 10^-3 m and a resistasnce of 3.49 k-ohms? the resistivity of tungsten is 5.62 x 10^-8 ohms*meters.3. Look up tabulated conductivities (or resistivities) of copper, silver, and aluminum at 20 °C and calculate the resistance of a copper wire that is 2 meters long with a1 mm diameter. Repeat your calculation for silver, and for aluminum. The density of free electrons is 8.5x1028 particles/m3 for copper, 5.86x 102 m-3 for silver, and 18.1x1028 m-3 for aluminum. For a potential difference of 5 volts, how do the electron drift velocities in each of the three wires compare with one another?Please help because I don't know what I did wrong...final units is correct but the my value is wrong.