NEET 2022
- Exam
- NEET
- Year
- 2022
- Subject
- Physics
- Chapter
- Semiconductors
NEET 2022 · Physics · Semiconductors
In the given circuits (a), (b) and (c), the potential drop across...
In the given circuits (a), (b) and (c), the potential drop across the two junctions are equal in:
Options
- ACircuit (b) only
- BCircuit (c) only
- CBoth circuits (a) and (c)
- DCircuit (a) only
Correct answer
C. Both circuits (a) and (c)
Step-by-step solution
In circuit(a), both p-n junctions are in forward bias, hence current will flow and potential drop will be equal.
In circuit(c), both p-n junctions are in reverse bias and hence negligible current will flow through the circuit and potential drop will be equal.
In circuit(b), one p-n junctions is in reverse bias and one in forward bias. So, they will show different resistances. Also, negligible current will flow through the circuit. Hence, potential drop will be different.