In summary: An inductor is similar, but it's like a piece of metal that doesn't let electricity through...In summary, when creating an electromagnet and moving it up and down, we are indeed creating electromagnetic waves. It is possible to generate x-rays, light, and radio waves by moving it at the correct speed, with the amplitude, frequency, and wavelength determined by the motion of the magnet. However, it may not be feasible for a physical magnet to vibrate at such high frequencies. Radio waves are generated by moving electrons through the use of a resonant circuit, while other electromagnetic waves can be generated by
#36
relativelyslow
104
0
what inductance (current range) works best for radios? should i post building a radio in the engineering section?
I don't know what you mean by "current range," but the inductor used in a crystal radio is selected, along with the capacitor, to provide resonances at the appropriate transmission frequencies. More complex radios are, well, more complex.
- Warren
#38
relativelyslow
104
0
at wilcocorp.com/catalog, you can get free inductors but it asks for an inductance range or current range.
#39
Goalie_Ca
102
0
Current range is probably the current limit. Don't forget, if you pass too high of a current through a wire it will burn like a fuse or a burnt out lightbulb.
#40
relativelyslow
104
0
what would be the ideal limit for a radio or practical for experimenting?