1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Barrier potential of a p-n junction diode does not depened on
A
diode design
B
temperature
C
forward bias
D
doping density
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
For the given circuit of p-n junction diode which is correct

AIPMT 2002 Physics - Semiconductor Electronics Question 38 English
A
in forward bias the voltage across R is V
B
in reverse bias the voltage across R is V
C
in forward bias the voltage across R is 2V
D
in reverse bias the voltage across R is 2V.
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
The given truth table is for which logic gate

              $$\matrix{ A & B & Y \cr 1 & 1 & 0 \cr 0 & 1 & 1 \cr 1 & 0 & 1 \cr 0 & 0 & 1 \cr } $$
A
NAND
B
XOR
C
NOR
D
OR.
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In a p-n junction
A
high potential at n side and low potential at p side
B
high potential at P side and low potential at n side
C
p and n both are at same potential
D
undetermined.
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