1
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 79 English
A
(A), (B) and (D)
B
(C) only
C
(C) and (A)
D
(B) and (D)
2
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 80 English
A
5 mA
B
10 mA
C
15 mA
D
20 mA
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
In forward biasing of the p-n junction
A
the positive terminal of the battery is connected to p-side and the depletion region becomes thick.
B
the positive terminal of the battery is connected to n-side and the depletion region becomes thin.
C
the positive terminal of the battery is connected to n-side and the depletion region becomes thick.
D
the positive terminal of the battery is connected to p-side and the depletion region becomes thin.
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Symbolic representation of four logic gates are shown as

AIPMT 2011 Prelims Physics - Semiconductor Electronics Question 82 English

Pick out which ones are for AND, NAND and NOT gates, respectively
A
(ii), (iii) and (iv)
B
(iii), (ii) and (i)
C
(iii), (ii) and (iv)
D
(ii), (iv) and (iii)
NEET Subjects
EXAM MAP