1
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The following figure shows a logic gate circuit with two inputs A and B and the output Y. The voltage waveforms of A, B and Y are as given.

AIPMT 2010 Mains Physics - Semiconductor Electronics Question 71 English

The logic gate is
A
NOR gate
B
OR gate
C
AND gate
D
NAND gate
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
To get an output Y = 1 in given circuit which of the following input will be correct ?

AIPMT 2010 Prelims Physics - Semiconductor Electronics Question 83 English
A
A $$ \to $$ 1,  B $$ \to $$ 0,  C $$ \to $$ 0
B
A $$ \to $$ 1,  B $$ \to $$ 0,  C $$ \to $$ 1
C
A $$ \to $$ 1,  B $$ \to $$ 1,  C $$ \to $$ 0
D
A $$ \to $$ 0,  B $$ \to $$ 1,  C $$ \to $$ 0
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A common emitter amplifier has a voltage gain of 50, an input impedance of 100 $$\Omega $$ and an output impedance of 200 $$\Omega $$. The power gain of the amplifier is
A
500
B
1000
C
1250
D
50
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has high melting point ?
A
metallic bonding
B
van der Waal's bonding
C
ionic bonding
D
covalent bonding
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