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3. (20 points) The resistivity of aluminum at 0'C has been measured to be 2.46 x...
e2-n-c 3. (20 points) The resistivity of aluminum at 0 C has been measured to be...
e2-n-c 3. (20 points) The resistivity of aluminum at 0 C has been measured to be 2.46 x 10 m. The thermal coefficient of resistivity of aluminum at -40°C is 5.18 x 10-8K-1 Aluminum has a valency of 3, a density of 2.70g cm, and an atomic mass of 27 Answer the following questions: (a). Calculate the resistivity of aluminum at 25 C; (b). What is the thermal coefficient of resistivity of aluminum at 25 C? (c). Estimate the mean...
13. The resistivity of aluminum at 25 'C has been measured to be 2.72 x 10-8 0 m. The thermal coefficient of resistivity of aluminum at 0 C is 4.29 x 10-3 K-1. Aluminum has a valency of 3, a d...
13. The resistivity of aluminum at 25 'C has been measured to be 2.72 x 10-8 0 m. The thermal coefficient of resistivity of aluminum at 0 C is 4.29 x 10-3 K-1. Aluminum has a valency of 3, a density of 2.70 g cm3, and an atomic mass of 27 a. Calculate the resistivity of aluminum at-40°С. (Ans: 2.03 x 103 Ω m) b. What is the thermal coefficient of resistivity at-40'C? (Ans: 5.23x 103K c. Estimate the mean...
11. An aluminum wire with a square cross-section 2 mm on a side is carrying a current of 1.5 amps. Aluminum has a resistivity of 2.69 x 10* ohm-cm and an atormic volume of 10 cc/mol. Assuming alum...
11. An aluminum wire with a square cross-section 2 mm on a side is carrying a current of 1.5 amps. Aluminum has a resistivity of 2.69 x 10* ohm-cm and an atormic volume of 10 cc/mol. Assuming aluminum has three free electrons per atom, calculate the (a) Hall coeffcient, (b) electron mobility, (c) drift velocity, d) collision time. (e) electric field, (f) power dissipated (heat generated) per cm length, and (g) the Hall voltage across the wire in a transverse...
An aluminum wire has a resistance of 3.00 2 at 31.0°C. Determine its resistance (in 2)...
An aluminum wire has a resistance of 3.00 2 at 31.0°C. Determine its resistance (in 2) at 431°C. The temperature coefficient of resistivity for aluminum wire is 3.90 x 10-3 (°C)-1. (Assume that the temperature coefficient of resistivity was measured using the reference temperature 20°C.)
1) The density of free electrons in gold is 5.90 x 1028 m-3. The resistivity of...
1) The density of free electrons in gold is 5.90 x 1028 m-3. The resistivity of gold is 2.44* x 10-80 m at a temperature of 20°C and the temperature coefficient of resistivity is 0.004 (°C)-1. A gold wire, 1.1 mm in diameter and 26 cm long, carries a current of 760 ma. The drift velocity of the electrons in the wire is closest to: A) 1.1 x 10-4 m/s B) 8.5 x 10-5 m/s 09 9.7 x 10-5 m/s...
Please answer this question: An aluminum wire having a cross-sectional area of 2.10 ✕ 10−6 m2...
Please answer this question:
An aluminum wire having a cross-sectional area of 2.10 ✕
10−6 m2 carries a current of 6.00 A. The
density of aluminum is 2.70 g/cm3. Assume each aluminum
atom supplies one conduction electron per atom. Find the drift
speed of the electrons in the wire.
Please answer correctly!!!! Thank you so much in advance!
Safari File Edit View History Bookmarks Window Help 恸 令49%DEE1 Mon 3:12:37 PM 6.585*10*-5 X Your response is off by a multiple...
2) Silver has a density of 10.5 x 103 kg/m3 and a resistivity of 1.60 x...
2) Silver has a density of 10.5 x 103 kg/m3 and a resistivity of 1.60 x 10-8 m at room temperature. (a) On the basis of the classical free electron gas model, and assuming that each silver atom contributes one electron to the electron gas, calculate the average time between collisions of the electrons. (b) Calculate the mean free path from t and the electron's thermal velocity. (c) How does the mean free path compare to the lattice spacing?
e) point C and D only 3; If the resistivity of an iron wire, which has...
e) point C and D only 3; If the resistivity of an iron wire, which has a temperature coefficient a = 5 x 10-3 (o C -1, ls 10% 10-8 Ω·m at 20 °C, then its resistivity (in 2.m) at 50 °C will be: -8 8 b) 11.5 x10 c) 12 x 10 -10 d) 12.5 10 e) 13 x10-8 24 The electric fieid (in N/C) at point p due to the charged rod shown is: a) 310 b) 6...
Copper wire has a resistivity ρ =1.7 x 10-8 Ω·m when at 20°C and it has a temperature coefficient α = 3.9×10-3 K-1.
Copper wire has a resistivity ρ =1.7 x 10-8 Ω·m when at 20°C and it has a temperature coefficient α = 3.9×10-3 K-1. A solid cylinder of copper of length L = 55 cm and diameter D = 2.5 mm has one end held at T1 = 0℃ and the other end is held at T2 =220 ℃. The temperature increases linearly between the two ends of the cylinder. Part (a) Consider a thin slice of the copper cylinder of thickness...
Copper wire has a resistivity ρ = 1.7 × 10-8 Ω⋅m when at 20°C and it...
Copper wire has a resistivity ρ = 1.7 × 10-8 Ω⋅m when at 20°C and it has a temperature coefficient α = 3.9 × 10-3 K-1. A solid cylinder of copper of length L = 85 cm and diameter D = 2.5 mm has one end held at T1 = 7°C and the other end is held at T2 = 210°C. The temperature increases linearly between the two ends of the cylinder. Given that T= T1 + ( x/L )...
e2-n-c 3. (20 points) The resistivity of aluminum at 0 C has been measured to be 2.46 x 10 m. The thermal coefficient of resistivity of aluminum at -40°C is 5.18 x 10-8K-1 Aluminum has a valency of 3, a density of 2.70g cm, and an atomic mass of 27 Answer the following questions: (a). Calculate the resistivity of aluminum at 25 C; (b). What is the thermal coefficient of resistivity of aluminum at 25 C? (c). Estimate the mean...
13. The resistivity of aluminum at 25 'C has been measured to be 2.72 x 10-8 0 m. The thermal coefficient of resistivity of aluminum at 0 C is 4.29 x 10-3 K-1. Aluminum has a valency of 3, a density of 2.70 g cm3, and an atomic mass of 27 a. Calculate the resistivity of aluminum at-40°С. (Ans: 2.03 x 103 Ω m) b. What is the thermal coefficient of resistivity at-40'C? (Ans: 5.23x 103K c. Estimate the mean...
11. An aluminum wire with a square cross-section 2 mm on a side is carrying a current of 1.5 amps. Aluminum has a resistivity of 2.69 x 10* ohm-cm and an atormic volume of 10 cc/mol. Assuming aluminum has three free electrons per atom, calculate the (a) Hall coeffcient, (b) electron mobility, (c) drift velocity, d) collision time. (e) electric field, (f) power dissipated (heat generated) per cm length, and (g) the Hall voltage across the wire in a transverse...
An aluminum wire has a resistance of 3.00 2 at 31.0°C. Determine its resistance (in 2) at 431°C. The temperature coefficient of resistivity for aluminum wire is 3.90 x 10-3 (°C)-1. (Assume that the temperature coefficient of resistivity was measured using the reference temperature 20°C.)
1) The density of free electrons in gold is 5.90 x 1028 m-3. The resistivity of gold is 2.44* x 10-80 m at a temperature of 20°C and the temperature coefficient of resistivity is 0.004 (°C)-1. A gold wire, 1.1 mm in diameter and 26 cm long, carries a current of 760 ma. The drift velocity of the electrons in the wire is closest to: A) 1.1 x 10-4 m/s B) 8.5 x 10-5 m/s 09 9.7 x 10-5 m/s...
Please answer this question:
An aluminum wire having a cross-sectional area of 2.10 ✕
10−6 m2 carries a current of 6.00 A. The
density of aluminum is 2.70 g/cm3. Assume each aluminum
atom supplies one conduction electron per atom. Find the drift
speed of the electrons in the wire.
Please answer correctly!!!! Thank you so much in advance!
Safari File Edit View History Bookmarks Window Help 恸 令49%DEE1 Mon 3:12:37 PM 6.585*10*-5 X Your response is off by a multiple...
2) Silver has a density of 10.5 x 103 kg/m3 and a resistivity of 1.60 x 10-8 m at room temperature. (a) On the basis of the classical free electron gas model, and assuming that each silver atom contributes one electron to the electron gas, calculate the average time between collisions of the electrons. (b) Calculate the mean free path from t and the electron's thermal velocity. (c) How does the mean free path compare to the lattice spacing?
e) point C and D only 3; If the resistivity of an iron wire, which has a temperature coefficient a = 5 x 10-3 (o C -1, ls 10% 10-8 Ω·m at 20 °C, then its resistivity (in 2.m) at 50 °C will be: -8 8 b) 11.5 x10 c) 12 x 10 -10 d) 12.5 10 e) 13 x10-8 24 The electric fieid (in N/C) at point p due to the charged rod shown is: a) 310 b) 6...
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