Magnetic circuits, Electrical Engineering

Assignment Help:

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).

 

74_magnetic circuit.png

 

A  current  I  amps  is  passed  through  the coil, creating a magnetic field H within the former. The flux density is

2302_magnetic circuit 1.png


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.


Related Discussions:- Magnetic circuits

What is stored program control, Q. What is Stored Program Control ? Sto...

Q. What is Stored Program Control ? Stored Program Control:Modern digital computers use stored programmed concept. Here, a program or a set of instructions to the computer is s

Define cables - generation and absorption of reactive power, Define Cables ...

Define Cables - Generation and Absorption of Reactive Power? It is well known that the shunt capacitance of the cable is very large as compared to that of an overhead line. Thi

Distinguish between ferromagnetic and paramagnetic materials, Distinguish b...

Distinguish between ferromagnetic and paramagnetic materials, mentioning at least one example of each. Ferromagnetic Materials: These are materials wherein magnetic dipoles i

What are the precautions to be taken, What are the precautions to be taken ...

What are the precautions to be taken before basic work on electrical installations? Ans: Before starting any electrical works on installations disconnect the power supply to

Network reconductoring - technical loss reduction, Network Reconductoring -...

Network Reconductoring - Technical Loss Reduction The size of conductor/cable is a significant parameter as it determines the current density and the resistance of the line. A

Embedded systems design, You have been requested by your Senior Engineer to...

You have been requested by your Senior Engineer to design a lift control unit (LCU) and prepare a report detailing your proposed solution. The client requires a microcontroller bas

Explain fourier series, Q. Explain Fourier Series? The phasor method of...

Q. Explain Fourier Series? The phasor method of circuit analysis can be extended (by using the principle of superposition) to find the response in linear systems due to nonsinu

Show function of compensating plate in interferometer, Q. Show Function of ...

Q. Show Function of Compensating Plate in interferometer? In absence of plate G2 the reflected ray passes the plate G1 twice, whereas the transmitted ray does not passes even o

#titl4 bit binary addere.., Ask question #Madvantages of 4 bit binary adder...

Ask question #Madvantages of 4 bit binary adder inimum 100 words accepted#

Long-term plans for technical loss reduction, Long-Term Plans for Technical...

Long-Term Plans for Technical Loss Reduction Long-term measures for technical loss reduction include all measures that require to be taken for the improvement of quality and r

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd