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spus Calculate the resistance of the gauge 12 wire at 100°C (cross-section area of 3.31mm). The...
Now let’s see how temperature affects the resistance of copper wire. A length of 18 gauge...
Now let’s see how temperature affects the resistance of copper wire. A length of 18 gauge copper wire with a diameter of 1.02 mm and a cross-sectional area of 8.20×10−7 m2 has a resistance of 1.02 Ω at a temperature of 20 ∘C. Find the resistance at 0 ∘C and at 100 ∘C. The temperature coefficient of resistivity of copper is 0.0039 (C∘)−1. On a hot summer day in Death Valley, the resistance is 1.15 Ω. What is the temperature?
Calculate the resistance of a piece of 20-gauge gold wire 2.20 m long. The cross-sectional area...
Calculate the resistance of a piece of 20-gauge gold wire 2.20 m long. The cross-sectional area of 20-gauge wire is 0.5176 mm2. Resistivity for ("calculator" notation, in ohm*meter) - aluminium: 2.65 e-8 copper: 1.72 e-8 gold: 2.24 e-8 iron: 9.71 e-8 nichrome: 1.00 e-6 platinum: 1.06 e-7 silver: 1.59 e-8 tungsten: 5.65 e-8
The diameter of Four Gauge copper wire is 5.189 mm. Calculate the resistance (in Q) of...
The diameter of Four Gauge copper wire is 5.189 mm. Calculate the resistance (in Q) of 7.54 km length of such wire used for power transmission. The resistivity of copper is 1.68 x 10-9 Om.
The diameter of Twelve Gauge copper wire is 2.052 mm. Calculate the resistance (in 2) of...
The diameter of Twelve Gauge copper wire is 2.052 mm. Calculate the resistance (in 2) of 4.52 km length of such wire used for power transmission. The resistivity of copper is 1.68 x 10-8 Am. Ω
The resistance of a 50 m long copper wire is 0.267 Ω at 20 °C. Calculate...
The resistance of a 50 m long copper wire is 0.267 Ω at 20 °C. Calculate the diameter of the wire. The resistivity of copper is 1.68 x 10-8 Ωm.
5. The instructions for an electric lawn mower suggest that a 20 gauge extension cord (...
5. The instructions for an electric lawn mower suggest that a 20 gauge extension cord ( cross sectional area = 5.2 x 10-7 m²) should only be used for distances up to 35 m. For longer distances a 16 gauge extension cord should be used ( cross sectional area = 13 x 107 m² ). The resistivity of copper (used in the extension cord) is 1.72 x 10-8 2.m at 20°C and the temperature coefficient of resistivity of copper is...
The resistance of a 1.50 m long copper wire, with a cross-sectional area of 7.06 x...
The resistance of a 1.50 m long copper wire, with a cross-sectional area of 7.06 x 10-6 m2, is measured at different temperatures starting at 20.0 oC and ending at 70.0 oC. The given table shows those resistances as a function of temperature differences from the initial temperature. Generate an accurate plot of the resistance as a function of DT. Determine the resistivity of copper from your plot and compare to the accepted value for copper’s resistivity. Determine the temperature...
An 80 cm long wire is made by welding a 1.8 mm diameter, 20 cm long...
An 80 cm long wire is made by welding a 1.8 mm diameter, 20 cm long copper wire to a 1.8 mm diameter, 60 cm long iron wire at normal room temperature (20 ∘C). When two wires are connected end to end, their resistances add together. The resistivity of copper is 1.68×10−8Ωm and the of iron is 1.00×10−7Ωm. The temperature coefficients are: copper = 0.0039/∘C and iron = 0.0050/∘C. What is the resistance of the copper section of wire?
An 80 cm long wire is made by welding a 1.8 mm diameter, 20 cm long...
An 80 cm long wire is made by welding a 1.8 mm diameter, 20 cm long copper wire to a 1.8 mm diameter, 60 cm long iron wire at normal room temperature (20 ∘C). When two wires are connected end to end, their resistances add together. The resistivity of copper is 1.68×10−8Ωm and the of iron is 1.00×10−7Ωm. The temperature coefficients are: copper = 0.0039/∘C and iron = 0.0050/∘C. What is the resistance of the iron section of wire?
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.2...
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.2 Ω at 20.0°C. If its resistance increases to 40.9 Ω at 27.5°C, what is the temperature coefficient of resistivity? (°C)−1
The diameter of Four Gauge copper wire is 5.189 mm. Calculate the resistance (in Q) of 7.54 km length of such wire used for power transmission. The resistivity of copper is 1.68 x 10-9 Om.
The diameter of Twelve Gauge copper wire is 2.052 mm. Calculate the resistance (in 2) of 4.52 km length of such wire used for power transmission. The resistivity of copper is 1.68 x 10-8 Am. Ω
5. The instructions for an electric lawn mower suggest that a 20 gauge extension cord ( cross sectional area = 5.2 x 10-7 m²) should only be used for distances up to 35 m. For longer distances a 16 gauge extension cord should be used ( cross sectional area = 13 x 107 m² ). The resistivity of copper (used in the extension cord) is 1.72 x 10-8 2.m at 20°C and the temperature coefficient of resistivity of copper is...
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