1
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Which logic gate is represented by the following combination of logic gates ?

AIPMT 2015 Cancelled Paper Physics - Semiconductor Electronics Question 100 English
A
AND
B
NOR
C
OR
D
NAND
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
If in a p-n junction, a square input signal of 10 V is applied, as shown,

AIPMT 2015 Cancelled Paper Physics - Semiconductor Electronics Question 99 English

then the output across RL will be
A
AIPMT 2015 Cancelled Paper Physics - Semiconductor Electronics Question 99 English Option 1
B
AIPMT 2015 Cancelled Paper Physics - Semiconductor Electronics Question 99 English Option 2
C
AIPMT 2015 Cancelled Paper Physics - Semiconductor Electronics Question 99 English Option 3
D
AIPMT 2015 Cancelled Paper Physics - Semiconductor Electronics Question 99 English Option 4
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
The given graph represents V-I characteristic for a semiconductor device.

AIPMT 2014 Physics - Semiconductor Electronics Question 98 English

Which of the following statement is correct ?
A
It is V-I characteristic for solar cell where, point A represents open circuit voltage and point B short circuit current.
B
It is for a solar cell and popints A and B represent open circuit voltage and current, respectively.
C
It is for a photodiode and points A and B represent open circuit voltage and current, respectively.
D
It is for a LED and points A and B represent open circuit voltage and short circuit current, respectively.
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
The barrier potential of a p-n junction depends on
(1)   type of semiconductor material
(2)   amount of doping

(3)   temperature

Which one of the following is correct ?
A
(1) and (2) only
B
(2) only
C
(2) and (3) only
D
(1), (2) and (3)
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