Semiconductor - Semiconductor objective questions and answers

21. The temperature co-efficient of an extrinsic semiconductor is.......

   A.Zero

   B.Positive

   C.Negative

   D.None of the above

22. ........ has the highest mobility.

   A.Electron

   B.Positive ions

   C.Negative ions

   D.Neutron

23. At room temperature N-type material will have....

   A.More of electrons

   B.More of holes

   C.Equal number of electrons and holes

24. A room temperature P-type material will have....

   A.More of electrons

   B.More of holes

   C.Equal number of electrons and holes

25. Nucleus is made of

   A.Electrons and protons

   B.Photons and neutrons

   C.Photons and neutrons

   D.Photons and electrons

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