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A device that does not exhibit negative resistance characteristics is

  • A device that does not exhibit negative resistance characteristics is FET.
  • FETs are three-terminal devices that operate by controlling the flow of current through a channel between two terminals (the source and the drain) with a voltage applied to a third terminal (the gate).
  • The current between the source and the drain is controlled by the voltage applied to the gate terminal, and there is no region of operation in which the current decreases as the voltage increases, which is a characteristic of negative resistance.
  • On the other hand, tunnel diodes, Gunn diodes, and some other electronic devices exhibit negative resistance characteristics.
  • These devices have a region of operation where an increase in voltage causes a decrease in current, resulting in a negative resistance slope on the current-voltage characteristic curve.