Germanium is a non-ohmic material that behaves differently than typical conductors when a voltage is applied.
Germanium is a non-ohmic material. Non-ohmic materials do not obey Ohm's Law, which states that the current through a conductor is directly proportional to the voltage applied across it. Germanium is a semiconductor with an intermediate resistivity, unlike typical metals or insulators. When a voltage is applied to germanium, its current-voltage characteristics differ from those of ohmic materials.
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