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Semiconductor Electronic: Material, Devices And Simple Circuits — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits1 Mark
MCQ
In the given circuit, if A and B represent two inputs and C represents the output, the circuit represents:

  • A
    NOR gate
  • B
    AND gate
  • C
    Gate
  • D
    OR gate
✓

Answer

  1. OR gate

Explanation:

The image given shows a diode OR circuit. R is connected from the output to ground to provide bias current for the diodes. Any positive voltage will represent a logic 1 state and the summing of currents through multiple diodes does not change the logic level.

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