Strong Electromagnet

How to make a very Simple Magnet with strong magnetic field

Step 1: Prepair a Nail or Any Iron Object

Using any metal which can be sucked by a magnet ( iron is the best). Don't use copper because it can't be sucked by a magnet

Step 2: Prepair Copper Wire With Insulation

You can get these in motor, transformer or buy them with very cheap price in the hardware store. Thicker wire - more magnetic field

Step 3: Wrap the Wire Around the Metal Object

More turn - More magnetic field generated

Step 4: Remove Insulation

Using sandpaper to remove the insulation in two ending of the coil

Step 5: Test the Magnet

Only 5 volt from USB can make very strong effect