Magnetic circuits with air gaps, Electrical Engineering

Assignment Help:

The creation of a magnetic field in a ring may need to be accessed by means of an air gap. This is typically used to apply the magnetic field to a current carrying conductor to produce a force - e.g. in an electric motor.]

Consider therefore, a ring with an air gap present.  

1190_Magnetic circuit with air gap.png

Note that since the flux lines are continuous, the flux density in the air gap and the ring will be the same. 

2341_Magnetic circuit with air gap1.png

However, the air gap represents a much larger reluctance to the flux than the high µ ring, so for the same magneto-motive force, the flux density in the ring will be reduced significantly compared to the case when no air gap was present.


Related Discussions:- Magnetic circuits with air gaps

Indirect addressing , Indirect Addressing In this  addressing  mo e al...

Indirect Addressing In this  addressing  mo e also ne  of the  operands is the  stored in the memory. The memory  address of the  operand  is specified  by the  register pair.

Explain ionic polarisation, Explain ionic polarisation. Ionic Polaris...

Explain ionic polarisation. Ionic Polarisation: It takes account of the fact that while some of the atoms in a molecule contain an excess positive or negative charge that of

Explain about hybrid network, Q. Explain about Hybrid network? Hybrid n...

Q. Explain about Hybrid network? Hybrid network (sometimes known as a hybrid coilor duplex coil) in a telephone set is a special balanced transformer used to convert a two-wire

Obtain an expression for the total pulling force on the bar, A magnetic cra...

A magnetic crane used for lifting weights can be modeled and analyzed as a simple magnetic circuit, as shown in Figure. Its configuration consists of two distinct pieces of the sam

Calculate the pay back of the project, Problem: Jyoti Textile is consid...

Problem: Jyoti Textile is considering whether to add a new product to its range. Machinery costing $280,000 would have to be bought at the start of the project (Year 0). The pr

Determine the 60-hz resistance of line, Q A handbook lists the 60-Hz resist...

Q A handbook lists the 60-Hz resistance at 50°C of a 900-kcmil aluminumconductor as 0.1185/mile. If four such conductors are used in parallel to form a line, determine the 60-Hz r

Control system, I need some help for doing the assignment

I need some help for doing the assignment

What is command, A selection form an application's menu, or a command typed...

A selection form an application's menu, or a command typed in by the user, like at a DOS prompt or at the Run dialog box in Windows.

Explain the drain characteristics of jfet with external bias, Q. Explain th...

Q. Explain the drain characteristics of JFET with external bias? It gives relation between Id and Vds for different values of Vgs.(which is called the running variable). The ab

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