Derive the expression of density of states for quantum wells and
based on the result of your derivation make comment about the
advantages of quantum-well lasers as compared to bulk lasers.
Derive the expression of density of states for quantum wells and
based on the result of your derivation make comment about the
advantages of quantum-well lasers as compared to bulk lasers.
An FCC crystal is pulled in tension along the [100] direction.
(a) Determine the Schmid factor for all slip systems. (b) Identify
the slip system(s) that would be activated first. (c) What is the
tensile stress under which this crystal will flow plastically? (τo
= 50 MPa)
Please derive the expression of density of states for quantum
wells and based on the result of your derivation, please make
comment about the advantages of quantum-well lasers as compared to
bulk lasers as much as possible.
Thanks in advance!!!
a. State the ampere circuital law
b. Derive expression for inductance of a Toroid?
c. Derive the set of Maxwell’s equations with
solutions in the integral form from the
fundamental laws of a good conductor?
d. Derive the expression for torque developed in a
rectangular closed circuit current (I) in a
uniform field?
B. Derive an expression for the mass of a particle that makes it
through the mass spectrometer as a function of: charge, q, the path
radius in the mass separator, Rpath, the magnetic field in the
velocity selector, B1, the electric field in the velocity selector,
E, and the magnetic field in the mass separator, B2.
(a) Explain the principle of transformer action.
(b) Derive an expression for the e.m.f. induced in a transformer
winding. Show that emf per turn in primary is equal to e.m.f. per
turn in the secondary.
a. Derive the expression for the capacitance of a
parallel plate having two dielectric
field.
b. Write a short note on the magnetization of the
following magnetic material?
i. Diamagnetic
ii. Paramagnetic
iii. Ferromagnetic
c. Derive the
expression for torque developed in a rectangular closed circuit
current (I) in a
uniform field?