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Explain the working of a forward biased ...

Explain the working of a forward biased p-n junction diode.

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Forward Bias: When a battery is connected across the junction such that p side is connected to the positive terminal and n side to the negative terminal of the source, the p-n junction is said to be forward biased. The applied voltage opposes the junction p.d and for values of the applied voltage greater than the junction p.d the charge carries easily across the junction and constitutes a current in an external circuit. This current rises linearly with the applied voltage beyond the knee voltage thus a forward biased p-n junction offers a low resistance.
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