We are required to make an hardware related to our electromagnetics subj.?

Question

can you give me some ideas?

thank you....

Answer 1

The subject of electromagnetics is subdivided into two main categories:

1) power electromagnetics :that is related to electrodynamics and  

   power systems.

2) electronical and communicational EM: that is related to information and data transfere theories.

Anyhow ,you must manage the subject first and thereafter you can put down what you have learnt .  

Answer 2

The easiest and cheapest piece of hardware is an antenna for an FM radio.

Get some 75 ohm two conductor cable.

Pull the two conductors apart to make a T shape.  One wire goes to the left, one goes to the right, and both meet at the top center.  The bottom of the T can be any length, and needs to go to the radio.

The only thing you have to be careful of is the length of the top of the T.  From each end to the center should measure 1 / 4 of your wavelength.

Your wavelength is the speed of light divided by the frequency of the radio station you want.

So, if your radio station is 98 MHz, (middle of the FM broadcast band), your wave length is (3x10^8 m/s) / (98 x 10^6 cycles per second) = 3m.

1 quarter of 3 metres is 0.75m, or 75 cm, or 29.5 inches.

You could build other sized antennas, or other styles, and compare their effectiveness for more marks.  Try researching the "J pole" antenna.