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

Digital control system, block diagram of digital control system and explain...

block diagram of digital control system and explain each block

Find the line current after the addition of capacitor bank, Q. Find the lin...

Q. Find the line current after the addition of capacitor bank? A 60-Hz, three-phase motor draws 25 kVA at 0.707 lagging power factor from a 220-V source. It is desired to impro

Use of capacitor in technical loss reduction, Use of Capacitor in Technical...

Use of Capacitor in Technical Loss Reduction The use of capacitors to correct for poor power factor is a well-built and cost-effective means of reducing distribution system lo

DC motor and DC generator, write down the similarities between motors and g...

write down the similarities between motors and generators

Digital logical disign, design SR latch with universal logic gates.draw and...

design SR latch with universal logic gates.draw and explain the logic diagrams

Explain about automatic stabilizers, Q. Explain about Automatic Stabilizers...

Q. Explain about Automatic Stabilizers? Automatic Stabilizers: Government fiscal policies which have effect of automatically moderating cyclical ups and downs of capitalism.

Push psw instruction , PUSH PSW Instruction It is similar to above  pu...

PUSH PSW Instruction It is similar to above  push  instruction but instead of normal  register Paris it use PSW as its  operand. Program status  word comprises of  the content

Hexadecimal number system, Hexadecimal Number System Similar  to octal ...

Hexadecimal Number System Similar  to octal number hexadecimal number system is also used to represent long  binary  numbers in  smaller  form. In microprocessor  we use  hexad

Electron beam focused to a fine spot, Q. How is the electron beam focused t...

Q. How is the electron beam focused to a fine spot on the face of the CRT? Sol. The functional diagram of an electrostatic focusing arrangement is shown below. The pre-accele

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