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Questions related to Electromagnetics
Why the yellow-brown color of the prepared graphene oxide by modified Hummers method turns to dark brown after washing with water?
27 December 2014 8,375 5 View
I am trying to get the relationship.
12 December 2014 7,858 4 View
Please see the attached for details.
12 December 2014 470 3 View
Why cant we just use permanent magnets? A permanent magnet kept in a magnetic field experiences torque, so why not use a magnet itself in a D.C motor, instead of using a coil?
12 December 2014 526 4 View
I want to know how FEKO uses the MoM model if it uses the model in its general form or the spacial case of Galerkin when the test functions are equal to the base functions.
12 December 2014 8,290 4 View
I am using two steel sheet materials for carrying deep drawing operations using tailor welded blanks. It is becoming difficult to measure the laser weld properties since the weld is very narrow....
18 October 2014 8,844 13 View
Let's say you know the resonant frequencies of a rectangular microwave resonator and that you are only considering TE_0np modes. However, you do not know which values of (n,p) belong to which...
10 October 2014 8,075 7 View
We know that these are two different fundamental forces of nature, so naturally they behave in a different manner. In the case of electromagnetic force, the strength varies inversely to the...
10 October 2014 2,974 4 View
Pulse Width modulation associated leads to issues like Electromagnetic Interference, Harmonic distortions and so on. As I work on Higher Peak Mean Power Output causing Device energy losses is also...
10 October 2014 1,645 1 View
Can you help me please?
09 September 2014 885 6 View
Does anyone know a reliable test that makes rapidly sure that weathering steel will be well adapted ( or not ) to build in a given place with special atmospheric conditions of corrosive...
27 August 2014 6,984 4 View
Adding lumped element to the structure
20 August 2014 4,601 5 View
08 August 2014 4,143 5 View
Is there any organic superconductor (other than fullerene based) show Tc more than 30 K?
08 August 2014 1,553 4 View
How these parameters gives better results than other parameters?
08 August 2014 7,805 3 View
The intended application is to apply capacitor bank for Electromagnetic metal forming of metal sheets.
24 July 2014 801 1 View
I am trying to create GO paste - like the photo attached. I used a modified hummers method - the issue is, the result is that it is not oxidised enough. Can anyone suggest why this could be? Thank...
10 July 2014 4,786 4 View
I am working on metamaterial antenna, so I want to know about SRR working and their design (constructing) methods.
07 July 2014 1,103 13 View
07 July 2014 2,175 1 View
Why?
07 June 2014 5,301 3 View
.
06 June 2014 531 3 View
I am interested in seeing surface current, particularly in a dielectric resonator antenna. What is the physical significance of surface current?
06 June 2014 4,360 5 View
Almost any electromagnetics textbook will have a chapter on waveguides, usually starting with rectangular metal waveguides. The concept of TE and TM modes are presented where certain field...
06 June 2014 6,915 11 View
06 June 2014 708 3 View