When a $P-N$ junction is in forward bias,what happens to the depletion region and the potential barrier?
- AThe depletion region decreases and the potential barrier height increases.
- BThe depletion region widens and the potential barrier height decreases.
- CBoth the depletion region and the potential barrier height decrease.
- DBoth the depletion region and the potential barrier height increase.
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Similar Questions
Consider a $p-n$ junction as a capacitor, formed with $p$ and $n$-materials acting as thin metal electrodes and depletion layer width acting as separation between them. Basing on this, assume that an $n-p-n$ transistor is working as an amplifier in $CE$ configuration. If $C_1$ and $C_2$ are the base-emitter and collector-emitter junction capacitances, then :
DifficultTS EAMCET 2006
View SolutionWhich one of the following represents a forward-biased diode?
In a semiconductor diode,the reverse biased current is due to the drift of free electrons and holes caused by:
Easy
View SolutionThe following table provides the set of values of $V$ and $I$ obtained for a given diode. Let the characteristics be nearly linear. Over this range,the forward and reverse bias resistance of the given diode respectively are:
Condition $V$ $I$ Forward biasing $2.0 \, V$ $60 \, mA$ Forward biasing $2.4 \, V$ $80 \, mA$ Reverse biasing $0 \, V$ $0 \, \mu A$ Reverse biasing $-2 \, V$ $-0.25 \, \mu A$
| Condition | $V$ | $I$ |
|---|---|---|
| Forward biasing | $2.0 \, V$ | $60 \, mA$ |
| Forward biasing | $2.4 \, V$ | $80 \, mA$ |
| Reverse biasing | $0 \, V$ | $0 \, \mu A$ |
| Reverse biasing | $-2 \, V$ | $-0.25 \, \mu A$ |
Difficult
View Solution$A$ $p-n$ junction diode is reverse biased with a voltage of $8 \, V$. If the resistance of the diode is $4 \times 10^7 \, \Omega$, then the reverse saturation current is: (in $ \, \mu A$)
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