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NEET 2022 (Phase 1) · P-N Junction Diode

P-N Junction Diode question from NEET 2022 (Phase 1)

Q64NEET 2022 · PHASE 1Medium

P-N Junction Diode

Figure

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

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Answer: (d)

  1. (a) P-N and P-N in the same direction: both junctions are biased the same way and carry the same current, so their drops are equal.
  2. (b) P-N and N-P: one junction is forward and the other reverse biased; almost all the voltage appears across the reverse biased one, so drops are unequal.
  3. (c) N-P and N-P in the same direction: both are biased the same way, so drops are equal.
  4. So the answer is (d) both circuits (a) and (c).
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