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Magnetic circuits
To see how this is used in practice, consider a coil of N turns wound onto a closed ring shaped former with a very high
(note: r (steel) = 2000, r (silicon iron) = 7000, r (nickel) = 600).
A current I amps is passed through the coil, creating a magnetic field H within the former. The flux density is
webers/m2 and the flux is B.A ,where A i the area of the core. The flux density is mainly confined within the core because the core has a much larger than air. ( r>>1). Provided this is the case, then the flux density outside the core may usually be neglected in comparison.Because of its high , the former effectively 'guides' the flux around the loop in a similar way to current being guided around an electrical circuit by a high conductance (low resistance) wire.
Define Hysteresis Hysteresis is the 'lagging' effect of flux density B whenever there are changes in the magnetic field strength H. When an initially unmagnetized ferromagnetic
Transistor Hybrid model:- Make Use of h - parameters to explain a transistor have the following benefits. a) h - Parameters are real numbers that are up to radio frequ
why very high resistance wire is used is field windind and low resistance wire is used in armature winding in DC shunt machine?
The paper should be written in the format of a paper to be submitted to a conference (IEEE). There should be a minimum of three journal paper references. The topic should be a disc
Calculations of sending line voltage
FIFO (First in First Out) stack is used in 8086.In this type of Stack the first stored information is retrieved first.
Illustrate Common Emitter configuration, current amplification factor and collector amplifier. Describe transistor as an amplifier.
'Electrical drives' is a general term that is commonly used to describe both DC and AC excited motors that provide continuous rotary motion, whilst 'electrical actuators' provide l
Q. What do you eman by Digital Circuits? The use of nonlinear devices (BJT and FET) in constructing linear amplifiers. Although these devices are inherently nonlinear, their op
Specific Core Indicators Method This technique emphasizes to assign the responsibility and create the accountability. It is possible in which for any of the main indicators, t
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