Q. Soon after the electrons are moving from the n-type to the p-type silicon, it combines with the holes, then it

A
Disappears
B
Appears
C
Burst
D
None of these
Solution:

Soon after the electrons are moving from the n-type to the p-type silicon, it combines with the holes, then it disappears. The holes don’t really move of course. It is just fixed positive ions grabbing neighbouring electrons, but it appears as if holes are moving.

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