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On doping Ge with a little of In or Ga o...

On doping `Ge` with a little of `In or Ga` one gets

A

p-type semiconductor

B

insultor

C

n-type semiconductor

D

rectifier

Text Solution

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The correct Answer is:
A
When we add some of In or Ga (group 13 element) into Ge (group number 14 elements), then electron vacancy is created which is called holes. In this type of semiconductor the charge carrier are holes (positive), so it is called p-type semiconductor.
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