Reverse Bias — DiodeEasyQuestion 20219
Question
In reverse bias, diode current is:
- AVery large
- BModerate
- CVery small (only minority carriers = reverse saturation current)Correct
- DZero exactly
Correct answer
Very small (only minority carriers = reverse saturation current)
Explanation
Reverse bias widens the depletion layer and increases the barrier → majority carriers cannot cross → only minority carriers (small number) flow as reverse saturation current I₀ (typically μA range for Si diodes).