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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
Conventional flow of current will always be from:
  • A
    p type → n type
  • B
    n type → p type
  • C
    n Type → n type
  • D
    None of these
✓

Answer

  1. p type → n type

Explanation:

The holes in the covalent bonds of p-type semiconductor. They appear to move towards n-type semiconductor. Because the electrons in the covalent bonds of n-type semiconductor (not free electrons) jump towards p-type semiconductor due to plenty of holes available in the covalent bonds at p-side. 

Hence, conventional current flow from p-type to n-type.

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