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 ferroelectricity.
Ferroelectricity:- Materials of ferroelectric have a high dielectric constant that is non-linear that is, this depends to a considerable extent on the intensity of electric field. These materials exhibit hysterisis loops that are the polarization is not a linear function of applied electric field. When the center of gravity of the positive and negative charges into a body does not coincide in absence of an applied electric field, therefore substance has an electric dipole moment. Hence material is said to be spontaneously polarized and termed as ferroelectric material. That substance is termed as ferroelectric. This contains small regions termed as ferroelectric domains and all dipoles are parallely oriented in domain although different domains are randomly oriented into the absence of an external electric field. While the temperature exceeds a particular value termed as the Curie point, the substance loses its ferroelectric properties. Examples are: Rochelle salt, Barium titanate and Potassium dihydrogen phosphate.
Q. The N-coil windings of a three-phase, two-pole machine are supplied with currents ia,ib, and ic, which producemmfs given by F a = Ni a cos θm; F b = Ni b cos(θm - 120°); and
Q. Give the Shockley's equation for the transfer characteristics of JFET's? Where ID is the drain current and VGS is the voltage across gate and source. The squared term o
Using the LM741operational amplifier build a voltage amplifier with the voltage gain of |A V | = 500 v/v ± = 20%. Measure all necessary parameters of the amplifier (as per deliver
Q. IllustrateCommon base configuration? Common base configuration: In this circuit the base is common to both input and the output.Such a configuration is also known as groun
Define the term assembler directives. An assembler directive is a statement to provide direction to the assembler to perform the function of assembly process. The assembler di
1. For the flyback converter operating in the discontinuous "current" (flux) mode, derive an expression for the time at which the magnetizing current returns to zero. 2. A forwa
Q. Basic definition of electromagnetism? A basic understanding of electromagnetism is essential to the study of electrical engineering because it is the key to the operation of
a 4 bit synchronous counter uses flip flops with propagation delay times of 15ns each. what will be the maximum possible time requires for change of state?
Design and draw a circuit using the cascade system to operate two cylinders (A and B) which, on the operation of a start valve, produces the sequence A - B + B - A+. The cylinder
Q. A rigid 50- coaxial transmission line has air as dielectric. If the radius of the outer conductor is 1 cm, find the cutoff frequency
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd