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# Forward and Reverse Biasing Notes | Study Additional Documents and Tests for JEE - JEE

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(i) No current flows in the junction diode without an external battery. It is connected to a battery in two different ways. Hence two different bias are possible in junction diode.

(a) Forward bias
(b) Reverse bias

 S.No. Forward bias Reverse bias 1. The P-region of Junction diode Is connected to positive terminal of battery and N-region is connected to negative terminal of battery. The P-region Is connected to negative terminal and N-region is connected to positive terminal of the battery. 2. In this the width of depletion layer decreases In this the width of depletion layer increases 3. Current flows in it due to majority electrons and majority holes and hence high current (mA) flows in it.The direction of current in it is from P to N. Current flows in it due to minority electrons and minority holes and hence negligible current (in μA) flows in it.Direction of current s from N to P 4. The junction resistance is low The junction resistance is high 5. Curve between forward voltage and forward current Curve between reverse voltage and reverse current
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