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Q. No.

The following table is for which logic gate?

Input Output
A B C
0 0 1
0 1 1
1 0 1
1 1 0


1. AND
2. OR
3. NAND
4. NOT

Q1:
 87% From NCERT AIPMT - 1998
Subtopic:  Logic gates |
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The following logic gate is:
 
1. AND 
2. NAND 
3. EX-OR 
4. OR 
Q2:
 94% From NCERT AIPMT - 1998
Subtopic:  Logic gates |
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One part of a device is connected to the negative terminal of a battery and the other part is connected to the positive terminal of a battery. If their ends are now altered, current does not flow in circuit. The device is:
1. \(\mathrm{p\text-n}\) Junction
2. Transistor
3. Zener diode
4. Triode

Q3:
 73% From NCERT AIPMT - 1998
Subtopic:  PN junction |
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The cause of potential barrier in a \(\mathrm{p\text-n}\) junction diode is:
1. Concentration of positive and negative ions near the junction.
2. Concentration of positive charges near the junction.
3. Depletion of negative charges near the junction.
4. Increment in concentration of holes and electrons near the junction.
Q4:
 67% From NCERT AIPMT - 1998
Subtopic:  PN junction |
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The truth table for the following network is:

1.
\(A\) \(B\) \(Y\)
\(0\) \(0\) \(0\)
\(0\) \(1\) \(0\)
\(1\) \(0\) \(0\)
\(1\) \(1\) \(1\)
2.
\(A\) \(B\) \(Y\)
\(0\) \(0\) \(0\)
\(0\) \(1\) \(1\)
\(1\) \(0\) \(1\)
\(1\) \(1\) \(0\)
3.
\(A\) \(B\) \(Y\)
\(0\) \(0\) \(1\)
\(0\) \(1\) \(0\)
\(1\) \(0\) \(0\)
\(1\) \(1\) \(1\)
4. None of the above
Q5:
 76% From NCERT AIPMT - 1999
Subtopic:  Logic gates |
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Zener diode is used as:
1. Half-wave rectifier
2. Full-wave rectifier
3. AC voltage stabilizer
4. DC voltage stabilizer

Q6:
From NCERT AIPMT - 1999
Subtopic:  Applications of PN junction |
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The depletion layer has (for an unbiased \(\mathrm{p\text-n}\) junction):
1. electrons
2. holes
3. static ions
4. neutral atoms

Q7:
 64% From NCERT AIPMT - 1999
Subtopic:  PN junction |
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From the following diode circuit, which diode is in forward biased condition:

1. 2.
3. 4.
Q8:
 92% From NCERT AIPMT - 2000
Subtopic:  PN junction |
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Given Truth table is correct for:
\(A\) \(B\) \(Y\)
\(1\) \(1\) \(1\)
\(1\) \(0\) \(0\)
\(0\) \(1\) \(0\)
\(0\) \(0\) \(0\)
1. NAND
2. AND
3. NOR
4. OR

Q9:
 86% From NCERT AIPMT - 2000
Subtopic:  Logic gates |
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The following truth table represent which logic gate:

A B C
1 1 0
0 1 1
1 0 1
0 0 1


1.  XOR
2.  NOT
3.  NAND
4.  AND

Q10:
 91% From NCERT AIPMT - 2001
Subtopic:  Logic gates |
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