question_answer

In depletion layer, there are

A)  immobile ions

B)  free charge carries

C)  charge carrier and immobile ions

D)  None of the above

Correct Answer: A

Solution :

 Neutrality of both n and p-type semiconductor is disturbed a layer of negative charged ions appear near the junction is p -crystal and a layer of positive ions appear near the junction in n-crystal. This layer is called depletion layer.