Question

When Ge crystals are doped with phosphorus atom, then it becomes
(a) Insulator
(b) P-type
(c) N-type
(d) Superconductor

Answer 1

maybe n type
hope it helps

Answer 2

Answer:

When Ge crystals are doped with phosphorus atom, then it becomes (c) n-type semiconductor.

Explanation:

Whenever a pure crystal of Germanium( Ge) is doped with a trivalent impurity such as Boron, it results in the formation of a p-type semiconductor.

However, when it is doped with a pentavalent impurity such as phosphorus, it forms an n-type semiconductor.