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

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits1 Mark
MCQ
In positive logic, the logic state $1$ corresponds to:
  • A
    Positive voltage
  • B
    Zero voltage
  • C
    Lower voltage level
  • ✓
    Higher voltage level
✓

Answer

Correct option: D.
Higher voltage level
In digital logic, higher voltage is defined as logic state $'1\ '$ and lower voltage is defined as logic state $'0\ '$. The higher voltage need not necessarily be positive. For example, it is possible that state $'0\ '$ is defined as $−10 V$ and state $'1\ '$ is defined as $−5 V.$

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