The solid wire number 22AWG is suitable wire jumper for plugging into the
breadboard. The wire must be coated with Nigle or Tin. It easy to bend and cut.
To start by setting your wire stripper for 22 (0.34 mm2) gauge. Take the spool of
black wire and strip a ¼-inch (6 mm) length of insulation from both ends of the wire. With
your needle-nose pliers, carefully bend the bare wire 90 degrees. Bend the second bare
end 90 degrees so that the wire forms a squared “U” shape with the insulation in the
middle. The Figure 4-3 shows example of preparing wire jumper and components for
plugging into the breadboard for contruction the experimetnal circuit.