State the methods of connection of $p-n$ junction.
(N/A) The $p-n$ junction can be biased in two ways:
$(i)$ Forward bias: In this configuration,the $p$-region is connected to the positive terminal of the external battery and the $n$-region is connected to the negative terminal.
$(ii)$ Reverse bias: In this configuration,the $p$-region is connected to the negative terminal of the external battery and the $n$-region is connected to the positive terminal.
$(i)$ Forward bias: In this configuration,the $p$-region is connected to the positive terminal of the external battery and the $n$-region is connected to the negative terminal.
$(ii)$ Reverse bias: In this configuration,the $p$-region is connected to the negative terminal of the external battery and the $n$-region is connected to the positive terminal.
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