In forward biasing of the $p-n$ junction:
- Athe positive terminal of the battery is connected to $p-$side and the depletion region becomes thick.
- Bthe positive terminal of the battery is connected to $n-$side and the depletion region becomes thick.
- Cthe positive terminal of the battery is connected to $n-$side and the depletion region becomes thin.
- Dthe positive terminal of the battery is connected to $p-$side and the depletion region becomes thin.
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