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1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
The peak voltage in the output of a half wave diode rectifier fed with a sinusoidal signal without filter is 10 V. The d.c. component of the output voltage is
A
(10/$$\sqrt 2 $$) V
B
$$\left( {{{10} \over \pi }} \right)V$$
C
10 V
D
(20/$$\pi $$) V
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
In semiconductors at a room temperature
A
the valence band is partially empty and the conduction band is partially filled
B
the valence band is completely filled and the conduction band is partially filled
C
the valence band is completely filled
D
the conduction band is completely empty
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A n-p-n transistor conducts when
A
both collector and emitter are positive with respect to the base
B
collector is positive and emitter is negative with respect to the base
C
collector is positive and emitter is at same potential as the base
D
both collector and emitter are negative with respect to the base
4
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
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