Hello, I'm brand new to this forum. I'm an artist and musician and have just recently started delving into inventing, my scientific knowledge is very limited. I've made a simple electromagnet but I want to get the strongest pull between the magnet and another small surface. I want strong pull but I want to keep the space confined. So I don't want to use a huge piece of metal wrapped a million times or a huge car battery (or similar) to power it. And I want the power supply to be confined to the same small space, so no plug in power supply. I was wondering if I would get a much stronger bond if I used the electromagnet (using because I want to turn off the pull) and a permanent magnet, as opposed to using the electromagnet and a piece of steel or iron. I know there will be some pull between the permanent magnet and the bolt used to make the electromagnet when there is no power supply on the electromagnet, but I'm thinking of separating them by a thin sheet of plastic which will minimize the pull when the electromagnet isn't powered. Also, I believe I read somewhere that an electromagnet can de-magnetize a permanent magnet. In this case I'm referring to a Neodymium magnet. Is this correct? Thanks in advance for your help!!