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

Applied mechanics, State whether Lamis theorem is applicable for more than ...

State whether Lamis theorem is applicable for more than three coplanar concurrent forces?

Develop a block diagram of an asynchronous decade counter, Q. Counting to m...

Q. Counting to moduli other than 2 is a frequent requirement, the most common being to count through the binary-coded decimal (BCD) 8421 sequence. All that is required is a four-st

DC generators, 3. Why the external characteristics of a DC shunt generator ...

3. Why the external characteristics of a DC shunt generator is more drooping than that of a separately excited generator?

Determine paper is hygroscopic and absorbent or not, Paper is hygroscopic a...

Paper is hygroscopic and absorbent. This statement is true or false. Ans: Paper is hygroscopic and absorbent. This statement is true.

Types of high voltage distribution system, Types of High Voltage Distributi...

Types of High Voltage Distribution System A High Voltage Distribution System could be of the subsequent types: - Three phase Extension HT line from the primary substation a

Explain the working principle of a triac, Q. Explain the working principle ...

Q. Explain the working principle of a TRIAC. "Triac" is an abbreviation for three terminal ac switch. 'Tri'-indicates that the device has three terminals and 'ac' indicates tha

Dual trace and dual beam cro, what is difference between dual trace and dua...

what is difference between dual trace and dual beam cro?

Illumination, Ask question #Minimum 100A light assembly shop, 15 m long, 9 ...

Ask question #Minimum 100A light assembly shop, 15 m long, 9 m wide and 3 m up to trusses is to illuminated to a level of 200 lux. The utilization and maintenance factors are resp

When both mt2 and gate are positive, When both  MT 2 and  Gate  are pos...

When both  MT 2 and  Gate  are positive In this  junction  P 1 N 1   and P 2 N 2   are forward  biased whereas junction N 1 P 2 is reverse biased. The gate current flows  thr

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