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Why the graph of reversed biased diode is lies in third quadrant?
Wiki User
∙ 12y ago
-- The definition of 'reverse bias' is anode negative with respect to the cathode, or
negative voltage across the diode. That places the graph in negative-x territory.
-- The diode simply acts as a resistor. Its unique 'diode' characteristics arise from the
fact that its 'resistance' changes with different bias points, but the current through it
always has the same polarity as the voltage across it. Therefor . . .
-- When the voltage across it is negative, the current through it is also negative.
Negative current appears on the graph in negative-y territory.
-- Negative-x territory/negative-y territory is the third quadrant.
Wiki User
∙ 12y ago
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