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How to Wind a Multilayer Coil

If you want to create a powerful magnetic field, wind a multilayer coil. Multilayer coils are fixed lengths of electrical wire wound around a bobbin or circular coil former. Tightly formed turns of the wire generate a higher magnetic charge. When you wind multilayers of wire to make the coil, they create a larger more-powerful magnetic field. The electrical wire needs to be coated to prevent the current of the coil from transferring between wire layers.

Things You'll Need

1/16-inch coated copper wire, length of 10 feet
Wire cutter
Wire stripper
1-inch bobbin
Super glue
Electrical tape
12-volt battery

Instructions

- 1
  Cut a 1/16-inch coated copper wire to a length of 10 feet, using a wire cutter. Strip a 1/2-inch from both ends of the wire, using a wire stripper. Squeeze the wires with the wire stripper and pull the coating off the wire. One end of the wire is the spiral tacking end. The opposite end of the wire is the bobbin end.
- 2
  Start winding the wire around a 1-inch diameter bobbin 1 foot from the spiral tacking end. The excess wire will be used to wind the spiral tacking of the multilayer coil.
- 3
  Wind the wire around from the right end of the bobbin to the left end. Make tight turns, so there is no space between the wires. Continue until the first layer covers the bobbin.
- 4
  Apply super glue between the edges of the winded wires to connect them. Let the super glue dry for 10 seconds.
- 5
  Wind the wire over the first layer of the bobbin left to right. Alternate sides for each layer until you wind all the wire. Apply super glue to each layer of wire and let the glue dry for 10 seconds.
- 6
  Wind the excess wire vertically around the right side of the bobbin. The wire turns around the same part of the bobbin making the spiral tacking.
- 7
  Attach the bobbin end of the wire to the positive charge on a 12-volt battery and cover the exposed wire with electrical tape. Attach the spiral tacking end of the wire to the negative charge on a 12-volt battery and cover the exposed wire with electrical tape. Electrical current runs through the multilayer coil generating a magnetic field.

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