The current density of a silver wirele 2.50x100 A/m.If the current and the drift velocity of...

Question

Question

science physics

Answer 1

Answer #1

3.65 - I T ma r Current I = 3.65 A Current density J = 2:5X10° Alm2 Area of cross section of wire A 1.466100 2.5 x 106 Area,

Answer 2

Similar Homework Help Questions

The current density of a silver wire is 3.20x106 A/m² . If the current and the...

The current density of a silver wire is 3.20x106 A/m² . If the current and the drift velocity of the electrons through the wire is 2.00 A and 3.20x10-4 m/s respectively. . Part A - Find the diameter of the wire and the density of free electrons. 8.92x10-4 m 6.25x1028 8.92x10-4 m , 1.25x1027 6.31*10-4 m 6.25x1028 6.31*10-4 m , 1.25x1027 7.96x10-7 m , 1.25x1027
Consider an electrophysiology experiment in which a 0.200 mm diameter round silver wire is used as...

Consider an electrophysiology experiment in which a 0.200 mm diameter round silver wire is used as a stimulation electrode. In this experiment, a current of 3.77~ mA is applied through the wire. The density of free electrons in silver is 5.86 x 10^28 electrons/m^3 . Calculate the magnitude of the drift velocity of the electrons in the silver wire under these conditions. Enter your answer in units of meters/second using calculator scientific notation (e.g., 1.23e-4 for 0.000123).
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.

How many electrons are associated with a current of 15.0 A? Calculate the drift velocity of...

How many electrons are associated with a current of 15.0 A? Calculate the drift velocity of electrons in a 2.053 mm diameter copper wire carrying a 20.0 A current, given there is one free electron per copper atom. (Atomic mass of copper is 63.5 kg) (Density of copper is 8.80 x 103 kg/m3) If the resistance of a copper resistor is 20.0 W at 20.0 oC, find its resistance at 100 oC. A car headlight filament is made of tungsten...
Learning Goal: Computing the drift velocity Part A An electric current of 20 A is passed...

Learning Goal: Computing the drift velocity Part A An electric current of 20 A is passed through a copper (Cu) wire of diameter 8.10×10−2 inches . If the number of electrons in 1 cm3 of Cu is 8.7×1022 , what is the magnitude of the drift velocity of the electrons millimeters per second? (I meter=39.3701 inches) Express your answer to two significant figures. Answer in mm/s
Find the drift velocity and show the conversion from cm^-3 to m^-3 FEE Materials & What...

Find the drift velocity and show the conversion from cm^-3 to m^-3 FEE Materials & What is the drift velocity of the electrons in a wire of diameter 1.7mm that carries a Current of 4A? Assume that the wire material has an electron density of 5.8x109em3. 45.84 yo State your answer in em/s.

Estimate the electron drift velocity Express your answer using two significant figures. A 0.62-mm -diameter copper...

Estimate the electron drift velocity Express your answer using two significant figures. A 0.62-mm -diameter copper wire carries a tiny current of 2.5 勺 @a ? m/s Submit Request Answer Part B Estimate the ourrent density Express your answer using two significant figures A/㎡ Submit Request Answer PartC Estimate the electric field in the wire. Express your answer using two significant figures V/m
2) The number density of conduction electrons in silver is 5.86 x 1028 m-3. independent of...

2) The number density of conduction electrons in silver is 5.86 x 1028 m-3. independent of temperature. If a cylindrical wire of length L and cross-sectional area A were made of silver its electrical resistance would be given by R= ρ L A where ρ is the resistivity of the material measured in Ω−m. The resistivity can also be shown to be related to microscopic properties of the metal such as the number density of conduction electrons, the mass and...
An 18-gauge copper wire (diameter 1.02 mm) carries a current with a current density of 1.40×106...

An 18-gauge copper wire (diameter 1.02 mm) carries a current with a current density of 1.40×106 A/m2 . Copper has 8.5×1028 free electrons per cubic meter Calculate the current in the wire Calculate the drift velocity of electrons in the wire.

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...