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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

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.
edited Apr 2, 2014