How To Make A Galvanometer | ((hot))

More turns = higher sensitivity.

For better stability, tape the compass to a small piece of cardboard. You can also create a simple paper scale to mark the degrees of deflection. how to make a galvanometer

Wrap the wire tightly around the compass from top to bottom. Leave about of wire free on each end to serve as "leads" for your circuit. More turns = higher sensitivity

A galvanometer works because an electric current flowing through a wire creates a magnetic field around that wire. When the wire is coiled, this magnetic field becomes stronger and more concentrated. A magnetized needle placed near this coil will attempt to align itself with the new magnetic field, resulting in a visible "swing" or deflection. how to make a galvanometer