Recent content by Mindstormed

Does it take a certain amount of time for an electromagnet to reach it's full magnetic potential? For example, would a 1 nanosecond pulse of juice be enough to fully magnetize a small lifting electromagnet? Thanks in advance.

Trying to determine the strength of an electromagnet in Teslas, with an iron core. Some sites have the same basic formula but with different units after B= Some use μ0, μr, or μ. Which one to use? For N (the number of turns), is this the general number of turns accounting for multiple...

Sorry for beating a dead horse here, but I have a similar problem with coil windings and didn't quite understand what was said. Supposing a bolt is standing up on it's cap on the table. The coil would be wound clockwise & down the shaft towards the cap. Once the cap is reached, remaining in the...

I'm not too knowledgeable on electricity, but I'm constructing an electromagnet with aluminum strips as the coil and using a 120 volt household current. Proposing to solder an extension cord to the strip coil. 1. When it is plugged into the outlet, will it automatically send juice through the...

So it's possible with a higher current? I'm looking to get at least two layers in.

I'm constructing an typical electromagnet, wrapping coil x amount of times around a 1" diameter iron bar, and getting power from 'D' cell batteries. My question is how thick can the wire's insulation & jacket be? Most of the examples I've seen used a nail, with 22-26 gauge copper or magnet...