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Asked in NEET 2026 · Biasing and I-V characteristics
Idea: name the current by the bias that drives it.
Below the threshold the junction still carries most of the barrier, and the forward current is small.
Once the applied voltage passes that threshold the barrier is nearly cancelled and the current rises steeply, so A is a fair description.
Reverse saturation current is the small, nearly constant current that flows the other way under reverse bias, carried by minority carriers; it is measured in microamperes and has nothing to do with the steep forward rise.
So A is true and B is false.
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