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When forward bias is applied to a p-n junction.

(a)it raises the potential barrier (b)reduces the majority carrier current to zero (c)\;lowers the potential barrier (d)Recombines holes and electrons
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In forward bias, the p-type is connected with the positive terminal and the n-type is connected with the negative terminal.
With a battery connected this way, the holes in the P-type region and the electrons in the N-type region are pushed toward the junction. This reduces the width of the depletion zone.
The positive potential applied to the P-type material repels the holes, while the negative potential applied to the N-type material repels the electrons.
As electrons and holes are pushed toward the junction, the distance between them decreases.
This lowers the barrier in potential.
answered Jan 31, 2014 by meena.p
edited Apr 2, 2014 by balaji.thirumalai
 

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