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Questions related to Electromagnetics
I know fundamental forces are made up of 4 forces Gravity, Electromagnetic, Strong and Weak forces. Why Dark matter and Dark Energy not part of fundamental forces? Is it because we don't know...
01 January 2015 5,326 8 View
The solution for epsilon and mu diverges using short circuit line method at higher frequencies. I have taken a sample material with epsilon=5 and mu=3 of thickness 1.5mm. TE10 mode is propagating...
01 January 2015 8,713 1 View
I've read some papers on magnetic Barkhausen effect. In all these papers, low frequency sine wave or triangular wave is used as excitation. Can magnetic Barkhausen effect occur under square wave...
01 January 2015 3,176 3 View
Currently, I am working on 2-D nonlinear joint inversion of VLF and VLF-R data. Since VLF_R data which I am taking in log scale ranging from (0-5) and sensitivity matrix has been calculated by...
01 January 2015 3,523 4 View
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 8,437 5 View
I am trying to get the relationship.
12 December 2014 7,936 4 View
Please see the attached for details.
12 December 2014 563 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 591 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 8,385 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 8,884 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 8,145 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 3,021 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 1,666 1 View
Can you help me please?
09 September 2014 943 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 7,060 4 View
Adding lumped element to the structure
20 August 2014 4,674 5 View
08 August 2014 4,215 5 View
Is there any organic superconductor (other than fullerene based) show Tc more than 30 K?
08 August 2014 1,594 4 View
How these parameters gives better results than other parameters?
08 August 2014 7,862 3 View
The intended application is to apply capacitor bank for Electromagnetic metal forming of metal sheets.
24 July 2014 880 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 4,839 4 View
I am working on metamaterial antenna, so I want to know about SRR working and their design (constructing) methods.
07 July 2014 1,185 13 View
07 July 2014 2,244 1 View
Why?
07 June 2014 5,356 3 View