9:-1A docs.google.como1J Electrons in silicon have a mobility of 1000 cm V-sec. The electric field is applicd to make theelectrons reach a velocity of 3 x 10 cm'sec. Assume that the mobility is constant andindependent of the electric field. What voltage is required to obtain this field in a 5 pum thickregion? How much time do the electrons need to cross the 5 um thick region?11 volt, 7.11*101" sec.Option 519 volt, 2.67*10" sec.Option 3 O4 volt. U 67 T0 sec * In.9:-1A docs.google.comLlä 7Q2] A copper wire of 3mm diameter with conductivity of 5.8 10' (2m)', and electron mobility of 0.0032 mV.Sec. is subjected to an electric field of 30mVm. Find (a) the charge density of free electrons, (b) currentflowing in the wire, (c) the electron draft velocity.8.5*102 C/m', 5.8 Amp, 11.7*10 m/SecOption 433.8*10 C/m', 11.3 Amp, 4.5*10" m/SecOption 2 O

(1) Given: The mobility is 1000 cm2/V.sec. The velocity of the electron is 3x107 cm/s. The thickness…

Electrons in silicon have a mobility of 1000 cm' V-sec. The electrie field is applied to make the electrons reach a velocity of 3 10' cm'sec. Assume that the mobility is constant and independent of the electric field. What voltage is required to obtain this field in a 5 um thick region? How much time do the electrons need to cross the 5 um thick region?

Electrons in silicon have a mobility of 1000 cm' V-sec. The electrie field is applied to make the electrons reach a velocity of 3 10' cm'sec. Assume that the mobility is constant and independent of the electric field. What voltage is required to obtain this field in a 5 um thick region? How much time do the electrons need to cross the 5 um thick region?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter30: Magnetic Fields And Forces

Section30.3: Ørsted’s Discovery

Problem 30.2CE

See similar textbooks

Similar questions

An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the absolute value of the charge density in the wire? (b) What is the drift velocity of the electrons? (c) What would be the drift velocity if the same gauge copper were used instead of aluminum? The density of copper is 8.96 g/cm3 and thedensity of aluminum is 2.70 g/cm3. The molar mass ofaluminum is 26.98 g/mol and the molar mass of copper is 63.5 g/mol. Assume each atom of metal contributes one free electron.
Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b) Find the resistance of 1.00 km of wire that would cause a 0.0100% power loss. (c) What is the diameter of a 1.00-km-long copper wire having this resistance? (d) What is unreasonable about these results? (e) Which assumptions are unreasonable, or which premises are inconsistent?
A particle accelerator produces a beam with a radius of 1.25 mm with a current of 2.00 mA. Each proton has a kinetic energy of 10.00 MeV. (a) What is the velocity of the protons? (b) What is the number (n) of protons per unit volume? (b) How many electrons pass a cross sectional area each second?
Q2] A copper wire of 3mm diameter with conductivity of 5.8x10' (2.m)', and clectron mobility of 0.0032 m2 V.Sec. is subjected to an electric field of 30mVm. Find (a) the charge density of free electrons, (b) current flowing in the wire, (c) the electron draft velocity.
Consider two wires made of different materials. Wire A has a conductivity of 1.3 × 107 Ω-1m-1, and wire B has a conductivity of 5.1 × 107 Ω-1m-1. Wire A has a circular cross-section with radius 3.78 mm. If there is an electric field of 0.085 V/m inside it, how much current, in amperes, is flowing through it? Wire B has a square 3.78 mm × 3.78 mm cross-section. If wire B has the same electric field as Wire A did in part (a), what current, in amperes, would be passing through it?
The electric field of the material between two coaxial cables of radius 0.525 cm and 0.675 cm is given as E = 2.85 V.m/r3 . If the conductivity of the material is 5 x 1010 S/m, what is the current density in the material?
The vector current density of a 3m long and 3mm diameter conductor is given as 155630 A/m^2. Determine the curent on the conductor, its free electron density, the drift velocity of the charges and the number of electrons passing through the conductor for 3 seconds.
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 6020 m/s and protons move to the left at 2583 m/s. The particles are evenly spaced with 0.0476 m between electrons and 0.0662 m between protons. Assuming that there are no collisions and that the interactions between the particles are negligible, what is the magnitude of the average current in this region?hanic needs to determine the emf and internal resistance of an old battery. He performs two measurements: in the first, he applies a voltmeter to the battery's terminals and reads 11.6 V; in the second, he applies an ammeter to the terminals and reads 14.3 A. What are the battery's emf  and internal resistance ??
A copper wire has a circular cross section with a radius of 3.20 mm. (a) If the wire carries a current of 2.60 A, find the drift speed of the electrons in the wire. (The density of electrons in copper is n = 8.46 ✕ 1028 electrons/m)m/s(b) All other things being equal, what happens to the drift speed in wires made of metal having a larger number of conduction electrons per atom than copper? Explain.