Selectivity with LM567

[Jeg]

Originally Posted by omar

Magnetism cannot be relied upon to detect precious metals because they are non-magnetic metals. Most suitable for ferrous metals.

Hi Omar
Diamagnetic material means that opposes to any magnetic field change. So it also induces currents but in a direction so to oppose the incident magnetic field change. It is like the transformer effect. So magnetism and diamagnetism are the two mirror sides of the same coin.