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(c) 1.9594 9 10 jas 1.2388x 108 m/s 22. What is the resistivity of gold at...
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...
The resistivity of gold is 2.44 x 10-8 ohms.m at room temperature. A gold wire that...
The resistivity of gold is 2.44 x 10-8 ohms.m at room temperature. A gold wire that is 0.9 mm in diameter and 14 cm long carries a current of 940 mA. What is the electric field in the wire? Answer 0.090 V/m 0.028 V/m 0.046 V/m 0.0090 V/m 0.036 V/m
The resistivity of gold is 2.44 x 10-80 mat a temperature of 20°C. A gold wire,...
The resistivity of gold is 2.44 x 10-80 mat a temperature of 20°C. A gold wire, 1.8 mm in diameter and 14 cm long, has a current of 480 mA flowing through it. What is the power converted in this wire at 20°C? 0.19 mW O 0.14 mW 0.077 mW 0.25 mW O 0.31 mW
Thanks to anyone that helps! Will rate answer. 3. The resistivity of gold is 2.44 x10^-8...
Thanks to anyone that helps!
Will rate answer.
3. The resistivity of gold is 2.44 x10^-8 ohm.m at room temperature. A gold wire that is 0.9 mm in diameter and 14 cm long carries a current of 940 mA. What is the electric field in the wire9 A) 0.036 V/m B) 0.0090 V/m C) 0.028 V/m D) 0.046 V/m E) 0.090 V/m
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...
A gold wire is 4.5 m long and 0.45 mm in diameter. What is its resistance?...
A gold wire is 4.5 m long and 0.45 mm in diameter. What is its
resistance?
(The sheet from my professor.)
TABLE 21-1 Resistivities Substance Insulators Quartz (fused) Rubber Glass Semiconductors Silicon* Germanium* Conductors Lead Iron Tungsten Aluminum Gold Copper Copper, annealed Silver Resistivity, p (2 m) 7.5 × 1017 1 to 100 x 1013 1 to 10,000 x 109 0.10 to 60 0.001 to 0.5 22 × 10-8 9.71 × 10-8 5.6 x 10-8 2.65 × 10-8 2.20 x...
A wire 50.0 m long 려nd 2.00 mm in diameter is connected to a source with...
A wire 50.0 m long 려nd 2.00 mm in diameter is connected to a source with potential difference of 9.11 V, and the current is found to be 5.72 A. Assume a temperature of 20°C and using the table below, identify the metal out of which the wire is mad Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°c) Material Resistivity Temperature Coefficient (Q m)of Resistivity (°c)-1 -3 1.59× 10 3.8 x 10 1.7 x 10-8 2.44 x...
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...
Using, C = λν E = hν C = 3.00 x 108 m/s h = 6.626...
Using, C = λν E = hν C = 3.00 x 108 m/s h = 6.626 2 x 10-34 J-s (or J/Hz) 8. What is the wavelength of a 1.528 x 10-13 J wave?
7) A 4.0 m length of gold wire is connected to a 1.5 V battery, and...
7) A 4.0 m length of gold wire is connected to a 1.5 V battery, and a current of 4.0 mA flows through it. What is the diameter of the wire? (The resistivity of gold is 2.44 × 10-8 Ω·m.) A) 17 µm B) 8.5 µm C) 48 µm D) 9.0 µm
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...
The resistivity of gold is 2.44 x 10-80 mat a temperature of 20°C. A gold wire, 1.8 mm in diameter and 14 cm long, has a current of 480 mA flowing through it. What is the power converted in this wire at 20°C? 0.19 mW O 0.14 mW 0.077 mW 0.25 mW O 0.31 mW
Thanks to anyone that helps!
Will rate answer.
3. The resistivity of gold is 2.44 x10^-8 ohm.m at room temperature. A gold wire that is 0.9 mm in diameter and 14 cm long carries a current of 940 mA. What is the electric field in the wire9 A) 0.036 V/m B) 0.0090 V/m C) 0.028 V/m D) 0.046 V/m E) 0.090 V/m
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...
A gold wire is 4.5 m long and 0.45 mm in diameter. What is its
resistance?
(The sheet from my professor.)
TABLE 21-1 Resistivities Substance Insulators Quartz (fused) Rubber Glass Semiconductors Silicon* Germanium* Conductors Lead Iron Tungsten Aluminum Gold Copper Copper, annealed Silver Resistivity, p (2 m) 7.5 × 1017 1 to 100 x 1013 1 to 10,000 x 109 0.10 to 60 0.001 to 0.5 22 × 10-8 9.71 × 10-8 5.6 x 10-8 2.65 × 10-8 2.20 x...
A wire 50.0 m long 려nd 2.00 mm in diameter is connected to a source with potential difference of 9.11 V, and the current is found to be 5.72 A. Assume a temperature of 20°C and using the table below, identify the metal out of which the wire is mad Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°c) Material Resistivity Temperature Coefficient (Q m)of Resistivity (°c)-1 -3 1.59× 10 3.8 x 10 1.7 x 10-8 2.44 x...
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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