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1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
The output of OR gate is 1
A
if both inputs are zero
B
if either or both inputs are 1
C
only if both inputs are 1
D
if either inputs is zero
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Of the diodes shown in the following diagrams, which one is reverse biased ?
A
AIPMT 2004 Physics - Semiconductor Electronics Question 50 English Option 1
B
AIPMT 2004 Physics - Semiconductor Electronics Question 50 English Option 2
C
AIPMT 2004 Physics - Semiconductor Electronics Question 50 English Option 3
D
AIPMT 2004 Physics - Semiconductor Electronics Question 50 English Option 4
3
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
4
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
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