Category Archives: Molecular physics

Negative resistance amp

Negative resistance

Negative resistance Definition

It is a characteristic of some electronic instruments in which an increase in the current (I) gives rise to a voltage (V) drop across the circuit. It is also called negative differential resistance or negative differential conductance. Normally in ohmic resistors, the current through a conductor between two points is directly proportional to the potential difference, according to Ohm’s law. On the other hand, negative resistors exhibit reverse behavior. Although it has only a theoretical existence, certain types of diodes display this property. It is analogous to negative temperature coefficient of resistance that occurs when a physical property of a material lowers with increasing temperature. Continue reading