reverse bias

Question

Reverse bias causes current to be:

RankGuru · Accepted Answer

In reverse bias, the positive terminal is connected to the n-side and negative to the p-side.
- This supports the built-in barrier, widening the depletion layer and preventing majority carriers from crossing.
- However, a very small current called the **reverse saturation current** ($I_0$) flows due to the drift of **minority carriers** (which are pushed across the junction by the field).
- This current is nearly independent of the reverse voltage (until the breakdown voltage is reached).

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reverse bias

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