When a current flows in an aluminum wire of diameter 4.39 mm , the drift speed...
When a current flows in an aluminum wire of diameter 4.39 mm , the drift speed of the conduction electrons is 0.000135 m/s . How many electrons are flowing past a given point each second? The conduction electron density in aluminum is 6.00 × 10 28 m ^(− 3)
Homework Answers
To find number of electrons in t =1 sec
where , e = 1.6 × 10-19 C is the
magnitude of charge on each electron.
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When a current flows in an aluminum wire of diameter 4.39 mm ,
the drift speed...
1. When a current flows in an aluminum wire of diameter 4.67 mm, the drift speed...
1. When a current flows in an aluminum wire of diameter 4.67 mm, the drift speed of the conduction electrons is 0.000135 m/s. How many electrons are flowing past a given point each second? The conduction electron density in aluminum is 6.00×1028 m−3. 2. When a current flows in an aluminum wire of diameter 2.15 mm, the drift speed of the conduction electrons is 0.000249 m/s. How many electrons are flowing past a given point each second? The conduction electron...
Find the drift velocity of conduction electrons in a gold wire of diameter 2.91 mm when...
Find the drift velocity of conduction electrons in a gold wire of diameter 2.91 mm when a current of 0.159 A flows in it. The density of conduction electrons in gold is 5.90 × 1028 m–3.
An aluminum wire having a cross-sectional area of 6.00 ✕ 10-6 m2 carries a current of...
An aluminum wire having a cross-sectional area of 6.00 ✕ 10-6 m2 carries a current of 8.00 A. Find the drift speed of the electrons in the wire. The density of aluminum is 2.70 g/cm3. Assume each aluminum atom supplies one conduction electron. mm/s
Consider a copper wire with circular cross section with radius 0.5 mm, where the conduction electrons...
Consider a copper wire with circular cross section with radius 0.5 mm, where the conduction electrons in the wire have drift velocity 1 mm/s. Copper has a density of 8960 kg/m3, and copper atoms have a mass of 63.5 amu (where 1 amu = 1.67 x 10−27 kg). (a) How many copper atoms are in one cubic meter of copper wire? (b) Assume each copper atom provides one conduction electron (that is, for each copper atom, one electron is able...
An aluminum wire with a diameter of 0.125 mm has a uniform electric field of 0.295...
An aluminum wire with a diameter of 0.125 mm has a uniform electric field of 0.295 V/m imposed along its entire length. The temperature of the wire is 55.0° C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity of aluminum at this temperature. ρ = 3.2e-8 Ω·m (b) What is the current density in the wire? J = MA / m2 (c) What is the total...
An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.205...
An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.205 V/m imposed along its entire length. The temperature of the wire is 35.0°C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity (in . m) of aluminum at this temperature. p= 2.m (b) What is the current density (in MA/m2) in the wire? = C MA/m2 (c) What is the total...
An aluminum wire with a diameter of 0.115 mm has a uniform electric field of 0.235...
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An aluminum wire with a diameter of 0.105 mm has a uniform electric field of 0.325...
An aluminum wire with a diameter of 0.105 mm has a uniform electric field of 0.325 V/m imposed along its entire length. The temperature of the wire is 35.0°C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity (in Ω · m) of aluminum at this temperature. ρ = _______Ω · m (b) What is the current density (in MA/m2) in the wire? J = ________MA/m2 (c)...
Help please Current Density and Drift Speed A group of charges, each with charge q, moves...
Help please
Current Density and Drift Speed A group of charges, each with charge q, moves with velocity v^vector. The number of particles per unit volume is n. What is the current density J^vector of these charges, in magnitude and direction? Make sure that your answer has units of A/m^2. We want to calculate how long it takes an electron to get from a car battery to the starter motor after the ignition switch is turned. Assume that the current...
An aluminum wire having a cross-sectional area of 4.70 ✕ 10−6 m2 carries a current of...
An aluminum wire having a cross-sectional area of 4.70 ✕ 10−6 m2 carries a current of 4.50 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. mm/s
An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.205 V/m imposed along its entire length. The temperature of the wire is 35.0°C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity (in . m) of aluminum at this temperature. p= 2.m (b) What is the current density (in MA/m2) in the wire? = C MA/m2 (c) What is the total...
Help please
Current Density and Drift Speed A group of charges, each with charge q, moves with velocity v^vector. The number of particles per unit volume is n. What is the current density J^vector of these charges, in magnitude and direction? Make sure that your answer has units of A/m^2. We want to calculate how long it takes an electron to get from a car battery to the starter motor after the ignition switch is turned. Assume that the current...
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