1
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Transfer characteristics [output voltage (V0) vs input voltage (Vi)] for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used

AIPMT 2012 Prelims Physics - Semiconductor Electronics Question 87 English
A
in region III
B
both in region (I) and (III)
C
in region II
D
in region I
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
The figure shows a logic circuit with two inputs A and B and the output C. The voltage wave forms across A, B and C are as given. The logic circuit gate is
AIPMT 2012 Prelims Physics - Semiconductor Electronics Question 86 English
A
OR gate
B
NOR gate
C
AND gate
D
NAND gate
3
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
A Zener diode, having breakdown voltage equal to 15 V, is used in a voltage regulator circuit shown in figure. The current through the diode is

AIPMT 2011 Mains Physics - Semiconductor Electronics Question 78 English
A
5 mA
B
10 mA
C
15 mA
D
20 mA
4
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
In the following figure, the diodes which are forward biased, are

AIPMT 2011 Mains Physics - Semiconductor Electronics Question 77 English
A
(A), (B) and (D)
B
(C) only
C
(C) and (A)
D
(B) and (D)
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