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Electronic Devices question

2021 · 25 Feb · Shift 2 · Q64
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Electronic Devices question

2021 · 25 Feb · Shift 2 · Q64

JEE MainPhysicsElectronic DevicesMCQ+4 / −1
For extrinsic semiconductors; when doping level is increased;
  1. A
    Fermi-level of both p-type and n-type semiconductors will go upward for T > TFK and downward for T < TFK, where TF is Fermi temperature.
  2. B
    Fermi-level of p-type semiconductor will go upward and Fermi-level of n-type semiconductors will go downward
  3. C
    Fermi-level of p and n-type semiconductors will not be affected.
  4. D
    Fermi-level of p-type semiconductors will go downward and Fermi-level of n-type semiconductor will go upward.
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