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
(a) Now consider a typical open-wire transmission line with parameters of R = 14 /mi, L = 4.6 mH/mi, C = 0.01 µF/mi, and G = 0.3×10 -6 S/mi. If the line operates at 1 kHz, find t

Revenue Loss Due to Loss of Opportunity to Serve The revenue loss because of "loss of opportunity to serve" is a extremely relevant but less visible aspect of revenue loss. Gu

What are the modes used in keyboard modes? 1. Scanned Keyboard mode with 2 Key Lockout. 2. Scanned Keyboard particular Error Mode. 3. Scanned Keyboard with N-key Rollover

The very basic specifications of a UJT are: Vbb(max) - The maximum interbase voltage that can be applied to the UJT (b) Rbb-the interbase resistance of the UJT (c) n - The

Given the network in Figure, (a) Find the currents through resistors R 1 , R 2 , and R 3 . (b) Compute the voltage V 1 . (c) Show that the conservation of power is satisfi

By a simple time multiplexing of natural samples over a single line, a large radar site transmits 85 analog signals, each with 200-Hz bandwidth. If the sampling is done at twice th

OUT Output Instruction This instruction is used  send data byte  stored in the accumulator  to the  output  port  whose  address  specified in the instruction. The instruction

KPI for Second Stage Implementation These KPIs deal along with the quality of the relationship among a supplier and a user (customer). They are significant to potential custom

Write a program to count how many from your data set called MYDATA, which is a set of signed single-byte numbers, has positive value and are odd numbers. Save the result in POSOD

To have the same value of P e , show that E b /N 0 in a coherent-ASK system has to be twice that in a coherent PSK system.