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NEET2002PhysicsSemiconductorsActual

At 0 ~K temperature, a p -type semiconductor

Options

  1. Adoes not have any charge carriers
  2. Bhas few holes but no free electrons
  3. Chas few holes and few free electrons
  4. Dhas equal number of holes and free electrons.

Correct answer

B. has few holes but no free electrons

Step-by-step solution

At 0 ~K temperature, a pure semiconductor behaves as an insulator, because it has a few holes in its valence band. But there is no free electron in this state.

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