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  4. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/64cabada832288103cabac397eddd308-.png /> In the given circuits (a), (b) and (c), the potential drop across the two p-n junctions are equal in :

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In the given circuits (a), (b) and (c), the potential drop across the two p-n junctions are equal in :

NEETNEET 2022Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

In (a) & (c) circuits, both the junctions are in same biasing conditions so offers equal resistances.
Since both are in series, therefore equal potential will drop across the junction.