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

Subtopic:  Logic gates |
 88%
Level 1: 80%+
AIPMT - 1998
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The following logic gate is:
 
1. AND 
2. NAND 
3. EX-OR 
4. OR 
Subtopic:  Logic gates |
 94%
Level 1: 80%+
AIPMT - 1998
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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

Subtopic:  PN junction |
 75%
Level 2: 60%+
AIPMT - 1998
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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.
Subtopic:  PN junction |
 71%
Level 2: 60%+
AIPMT - 1998
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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
Subtopic:  Logic gates |
 78%
Level 2: 60%+
AIPMT - 1999
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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

Subtopic:  Applications of PN junction |
Level 3: 35%-60%
AIPMT - 1999
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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

Subtopic:  PN junction |
 68%
Level 2: 60%+
AIPMT - 1999
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From the following diode circuit, which diode is in forward biased condition:

1. 2.
3. 4.
Subtopic:  PN junction |
 93%
Level 1: 80%+
AIPMT - 2000
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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

Subtopic:  Logic gates |
 87%
Level 1: 80%+
AIPMT - 2000
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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

Subtopic:  Logic gates |
 92%
Level 1: 80%+
AIPMT - 2001
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