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 hysteresis loop of a magnetic material.
Hystereses loop-Below the Curie temperature all-ferromagnetic materials show the identified hysteresis in the B (i.e. flux density) versus H (i.e. intensity of magnetic field) curves. Beginning with an unmagnetised specimen, B varies reversibly along with H for small fields. Because there is no hysteresis in that region, one classifies the initial permeability µr in similar way as the permeability of a paramagnetic material. As the field H is increased, B begins to enhance rapidly. Eventually approaches a saturation value Bsat. By reducing the value of H from the saturation region to zero, this is observed that there remains a flux density Br termed as remanent flux density. Because H = 0, the material should be permanently magnetised, actually the magnetisation corresponding to Br is equivalent to Br/µr. The field Hc needed to reduce the flux density to zero is termed as coercive force. The energy needed to take the material through one full cycle of magnetisation is proportional to the area enclosed through the loop.
Hysteresis Loop
Determine the Dielectric constant of slab: An air capacitor contains two parallel plates 10 cm 2 in area and 0.5 cm apart. While a dielectric slab of area 10 cm2 and thicknes
Equal volumes of all gases contain the samenumber of molecules when the volumes are measured at the same p and T. Therefore for a given volume at the same p and T, with the same
i would like to construct a colpitts oscillator using a series lc tank circuit as a feedback. the circuit will have a frequency of 150 Khz and it will drop when varying the value o
For a helical antenna, the half-power beamwidth and directive gain are given by where C = πD, N = L/S, and S = C tan α,in which α is called the pitch angle, and The
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
Q. What is Open-loop voltage gain? The op amp amplifies the difference vd between the voltage on the noninverting (+) terminal and the inverting (-) terminal; see Figure. The t
Q. What do you mean by Continuous signals? Continuous signals are described by time functionswhich are defined for all values of t (a continuous variable). Commercial broadcast
Checking at Site - Testing of Meter The routine testing of meters should be carried out once in 3 years. Further, surprise checks should be conducted at the consumer's install
Q. Planning and Research in power system? Energy research worldwide is assuming top priority, in particular because of economic, en - vironmental, and resource constraints. DOE
Draw the memory map of TPA in a personal computer and explain different areas. The transient program area holds the DOS operating system and other programs which control the co
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