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14. Semicondutor electronics — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics14. Semicondutor electronics1 Mark
MCQ
Two $ PN-$junctions can be connected in series by three different methods as shown in the figure. If the potential difference in the junctions is the same, then the correct connections will be
  • A
    In the circuit $(1)$ and $(2)$
  • ✓
    In the circuit $(2)$ and $(3)$
  • C
    In the circuit $(1)$ and $(3)$
  • D
    Only in the circuit $(1)$
✓

Answer

Correct option: B.
In the circuit $(2)$ and $(3)$
b
(b)Because in case $(1)$ $N$  is connected with $N$. This is not a series combination of transistor.

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