It’s an electromagnet pendulum analog circuit ... with electromagnets so they can move on to the next logical steps: coil guns and web shooters.

It is also grade school science to show that neither an electromagnet nor a permanent ... aluminum has a copper ring embedded in it. The coil is fed with AC. The magnetic field from the coil ...

A coil with an iron core is called an electromagnet. The iron core increases the coil’s magnetic field strength. A simple electromagnet is made by coiling wire around an iron nail. An iron core ...

Point the fingers of your right hand in the same direction as the current is flowing in the coil. Your thumb points to the north pole of the electromagnet. The magnetic field produced by the ...