Forward Bias Characteristics of a Junction Diode – Rankers Physics

P-N Junction Diode and its applications: Practice Problem & Solution

Which of the following statement is not correct when a junction diode is in forward bias :
The width of depletion region decrease
Free electrons on n-side will move towards the junction
Holes on p-side move towards the junction
Electrons on n-side and holes on p-side will move away from junction

Solution Explained:

To solve this problem, we apply the core principles of P-N Junction Diode and its applications. Understanding the underlying formula is key to arriving at the correct answer below:

In forward bias, the applied field opposes the barrier field, pushing major carriers (electrons on n-side and holes on p-side) towards the junction, thereby decreasing the depletion width. Thus, statement (4) is incorrect.

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