Navigate

If a small amount of antimony is added to germanium crystal

If a small amount of antimony is added to germanium crystal

Options

(a) it becomes a p-type semiconductor
(b) the antimony becomes an acceptor atom
(c) there will be more free electrons than holes in the semiconductor
(d) its resistance is increased

Correct Answer:

there will be more free electrons than holes in the semiconductor

Explanation:

When small amount of antimony (pentavalent) is added to germanium crystal then crystal becomes n-type semi condcutor. Therefore, there will be more free electron than holes in the semiconductor.

AIPMT2011
admin:

Related Questions

  1. The interferance pattern is obtained with two coherent light sources of intensity
  2. A series L-C-R circuit contains inductance 5 mH, capacitance 2 μF and resistance
  3. A thin rod of length L and mass M is held vertically with one end on the floor
  4. A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
  5. The temperature coefficient of the resistance of a wire is 0.00125 per ⁰C.