A

Admin • 828.03K Points
Coach

Q. When a piece of pure silicon is doped with aluminium, then

  • (A) the conductivity of the doped silicon piece will remain the same
  • (B) the doped silicon piece will become n-type
  • (C) the doped silicon piece will become p-type
  • (D) the resistivity of the doped silicon piece will increase
  • Correct Answer - Option(C)
  • Views: 3
  • Filed under category Physics
  • Hashtags:
Explanation by: Admin
p type of semiconductor is obtained when Silicon is doped with a trivalent impurity like Aluminium. Aluminium is a p-type dopant, which means that when a semiconductor i.e. silicon is doped with aluminium, it creates a hole (positively charged carrier) by accepting an electron from the silicon atom. Electrical conductivity of semiconductors increasesand resistivity remains the same

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Be the first to start discuss.