Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the very large generation rate obtained in the first part of problem 1. How many electron-hole pairs are created by an electron passing through a layer of 1μm thick at the scattering limited velocity?
Problem 1
How many electron-hole pairs are generated per second in Si by interband impact generation at x1 If E(x1)...3x105V/cm. If N(x1)=n1=1.0x1010cm-3, what is the number of electron-hole pairs generated per unit volume per second? How does this compare with the optical generation rate obtained In problem 2? (Use Figure 2).
Problem 2
Si, GaAs and CdS crystals are exposed to a yellow light of wavelength 5500A and intensity 1012 photons/cm2-sec. Verify that the photon energy Is 2.25eV. How many electron-hole pairs are generated per unit volume per second in each crystal? Assume that crystal is very thin and the light is absorbed uniformly in the very thin slice. Why do we need to assume the crystal to be very thin? (Use λ-1.24/E and Figure 2.) (Partial answer: Si, 7x1015cm-3s-1.)
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
A resistor is in the shape of a cube, with each side of resistance R . Find the equivalent resistance between any two of its adjacent corners.
Question: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ?
What is the maximum displacement of the bridge deck?
What is the magnitude of the current in the wire as a function of time?
Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
Illustrate the cause of the components accelerating from rest down the conveyor.
Calculate the dc voltage applied to the circuit.
Quadrupole moments in the shell model
Determine the tension in each string
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
Evaluate maximum altitude?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd