Magnetic circuits, Electrical Engineering

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.

Posted Date: 8/22/2012 4:23:21 AM | Location : United States







Related Discussions:- Magnetic circuits, Assignment Help, Ask Question on Magnetic circuits, Get Answer, Expert's Help, Magnetic circuits Discussions

Write discussion on Magnetic circuits
Your posts are moderated
Related Questions
In most real signal processing applications the measured signals can not be described by an analytical expression. In addition, by the Wold decomposition theorem a stationary signa

Activities to Preparing Long-term Plans 1. Data collection regarding existing loads, forecast of expected loads, operating conditions, and etc. from Grid substation up to cons

Consider the basic MOSFET circuit shown in Figure with variable gate voltage. The MOSFET is given to have very large V A , V T = 4V,and I DSS = 8 mA. Determine i D and v DS for

can voltage regulation be negative?why?

Q.  Give suitable block diagram to explain the working of electronic multimeter. Sol. An electronic multimeter is a laboratory instrument which is capable of measurement of

Masking As we know the MASJ is used  to cover  some part  of our  face  which  we want to hide  and to  show  other part of the face  which  we want to show. Similarly  the

Background of Energy Conservation As a thumb rule, the energy needs of a country are about 1.5 times its GDP or the economic growth rate. India's projected growth rate up to

Explain the construction of a MOSFET. Draw the symbols and diagrams of both P-channel and N-channel MOSFET. As JFET and MOSFET also have source, drain and gate. Its gate is ins

Q. Explain about Frequency Shift Keying? In this scheme frequency of the carrier signal is changed according to the data. Transmitter sends different frequencies for a "I" than

Transparent latch D flip  Flop A typical  example  of this  type of D flop  is 7475 shown  in figure when CLK  connected is enable signal is high and the flip  flop  is enabled