# How to Build a Strong Electromagnet?

To build a strong electromagnet is quite simple. You can use a nail wrapped with insulated electrical wire. Attach a battery to both ends of the wire. The higher voltage battery is the stronger the electromagnet will be.
How to Make a Strong Electromagnet
An electromagnet is a magnet that only turns on when electricity runs through it. A basic homemade electromagnet consists of a copper wire coil wrapped around some sort of metal core. The stronger the electromagnet, the more paper clips, nails and other... More »
Difficulty: Moderately Easy
Source: www.ehow.com
Q&A Related to "How to Build a Strong Electromagnet?"
 1. Use your utility knife to cut the plug off of your lamp cord, and cut the cord out of the lamp base. Make sure it is unplugged from the lamp at this time to avoid injury. If you http://www.ehow.com/how_6118984_build-strong-dc-el...
 To build a simple electromagnet I take a iron or steel nail 3 inch works well and leaving about 3 inches of wire off the nail on either side wrap the wire tightly in a spiral around http://answers.ask.com/Science/Physics/how_to_buil...
 1 Lay out the left side. Lay out a 36" 2x4 with its wide side flat on the table or other sturdy surface. Place a 15" 2x4 so that its right edge is 15" from the end http://www.wikihow.com/Build-a-Strong-Catapult
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The strength of an electromagnet is going to be based on the size of batteries you use. Simple electromagnets can be made with a 6 inch 10penny nail, wire, two ...