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# How to solve this problem- In a PN-junction diode

In a PN-junction diode

• Option 1)

The current in the reverse biased condition is generally very small

• Option 2)

The current in the reverse biased condition is small but the forward biased current is independent of the bias voltage

• Option 3)

The reverse biased current is strongly dependent on the applied bias voltage

• Option 4)

The forward biased current is very small in comparison to reverse biased current

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P -N junction as diode -

It is a one way device. It offers a low resistance when forward biased and high resistance when reverse biased.

- wherein

R = 0, Forward

$\rightarrow \infty$ Reverse

In forward biased condition resistance produced by P-N junction diode is very small and hence current is very large. In Reserve Biased condition ,resistance is very high and hence current is very small

Option 1)

The current in the reverse biased condition is generally very small

Correct

Option 2)

The current in the reverse biased condition is small but the forward biased current is independent of the bias voltage

Incorrect

Option 3)

The reverse biased current is strongly dependent on the applied bias voltage

Incorrect

Option 4)

The forward biased current is very small in comparison to reverse biased current

Incorrect

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