First slide

P-N junction diode

Question

Statement I: The value of current through p-n junction in the given figure will be 10 mA.
Statement II: In the above figure, p-side is at higher potential than n-side.

Moderate

A

Both statements I and II are correct.
B

Statement I is correct but statement II is incorrect
C

Statement I is incorrect but statement II is correct
D

Both statements I and II are incorrect.

Solution

The p-side of p-n junction is taken at higher potential than n-side, so p-n junction is forward biased. Taking its resistance to be zero and applying Ohm's law,
$I = \frac{V}{R} = \frac{5 - 2}{300} = 10^{- 2} A = 10^{- 2} \times 10^{3} mA = 10 mA$

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