1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Reverse bias applied to a junction diode
A
lowers the potential barrier
B
raises the potential barrier
C
increases the majority carrier current
D
increases the minority carrier current
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental frequency in the ripple will be
A
25 Hz
B
50 Hz
C
70.7 Hz
D
100 Hz
3
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
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
For a transistor $${{{I_C}} \over {{I_E}}}$$ = 0.96, then current gain for common emitter is
A
12
B
6
C
48
D
24

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