1. Kadav

    Need help with Magnetism Home work

    Hello can you please help me with these questions in magnetism about ferromagnetism .. Thanks Very much
  2. M

    Allow voltage flow when turning a motor with the wind

    Hello everyone and happy new year! Is there any way to use a conventional 3-6v motor as a switch? The idea is to put on the tip a kind of "spin", which when winding outside, for example, turn on a LED inside, indicating that there is wind. I think the most complex part is because they are not...
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