The drift current in a 
junction is
A
from the 
-side to the 
-side
-side to the -side B
from the 
-side to the 
-side
-side to the -side C
from the 
-side to the 
-side, if the junction is forward biased and in the opposite direction, if it is reverse biased
-side to the -side, if the junction is forward biased and in the opposite direction, if it is reverse biased D
from the 
-side to the 
-side, if the junction is forward biased and in the opposite direction, if it is reverse biased
-side to the -side, if the junction is forward biased and in the opposite direction, if it is reverse biased
Text Solution
Verified by ExpertsThe correct answer is:
A
The drift current in a p-n junction is caused by the movement of charge carriers under the influence of the built-in electric field in the depletion region.
In a 
-n junction, the depletion region has an electric field pointing from the 
-side to the 
-side.
This field pushes electrons from the 
-side to the 
-side and holes from the 
-side to the 
-side.
So, the drift current direction is:
From n -side to p -side (due to electrons moving in the depletion region).
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