Choose the correct options for the following questions.
The potential barrier across the depletion region in case of silicon and germanium are respectively:
Difficulty: Easy
A:
0.7 V, 0.3 V
B:
0.3 V, 0.1 V
C:
0.7 V, 0.01 V
D:
0.3 V, 0.7 V
A potential barrier of 0.7 V exists across p-n junction made from:
Difficulty: Easy
A:
Germanium
B:
Silicon
C:
Arsenic
D:
Gallium
In a p-n junction, the current flows due to:
Difficulty: Easy
A:
Free electrons only
B:
Holes only
C:
Positrons only
D:
Both a and b
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