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 most important characteristic of electron in the production of X-rays is
  2. Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
  3. Resistances n, each r Ω, when connected in parallel give an equivalent resistance
  4. The angular velocity of second’s hand of a watch is
  5. A bar magnet of moment M and pole strength m is cut into parts of equal lengths.