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Q. No.A logic circuit provides the output \(Y\) as per the following truth table:
\(A\)
\(B\)
\(Y\)
0
0
1
1
0
1
0
1
1
0
1
0
The expression for the output \(Y\) is :
1. \(A \cdot \overline{B}+\overline{A} \)
2. \(\overline{B} \)
3. \(B \)
4. \(A \cdot B+\overline{A}\)
0
1
1
1
0
1
0
1
0
Subtopic: Logic gates |
62%
From NCERT
NEET - 2024
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The output (\(Y\)) of the given logic gate is similar to the output of an/a:
1. \(\text{NOR}\) gate
2. \(\text{OR}\) gate
3. \(\text{AND}\) gate
4. \(\text{NAND}\) gate
1. \(\text{NOR}\) gate
2. \(\text{OR}\) gate
3. \(\text{AND}\) gate
4. \(\text{NAND}\) gate
Subtopic: Logic gates |
58%
From NCERT
NEET - 2024
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Subtopic: PN junction |
From NCERT
NEET - 2024
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A solar cell is a:
| 1. | forward biased zener diode. |
| 2. | type of light-emitting diode. |
| 3. | diode working on the principle of photo-voltaic effect. |
| 4. | type of photo-diode with external biasing. |
Subtopic: Applications of PN junction |
71%
From NCERT
NEET - 2024
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The correct input \((A,B)\) - output \((Y)\) combination for the given circuit is:
1. \(A=1,B=1,Y=1\)
2. \(A=0,B=1,Y=1\)
3. \(A=1,B=0,Y=0\)
4. \(A=0,B=0,Y=1\)
1. \(A=1,B=1,Y=1\)
2. \(A=0,B=1,Y=1\)
3. \(A=1,B=0,Y=0\)
4. \(A=0,B=0,Y=1\)
Subtopic: Logic gates |
60%
From NCERT
NEET - 2024
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Zener diode works:
| 1. | in forward bias only. |
| 2. | in reverse bias only. |
| 3. | as a voltage regulator in forward bias and as a simple pn junction diode in reverse bias. |
| 4. | as a voltage regulator in reverse bias and as a simple pn junction diode in forward bias. |
Subtopic: PN junction |
51%
From NCERT
NEET - 2024
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Consider the following Statements A and B and identify the correct answer:
| A. | For a solar-cell, the \(I\text-V\) characteristics lies in the IV quadrant of the given graph. |
| B. | In a reverse-biased pn junction diode, the current measured in (\(\mu \text{A}\)), is due to majority charge carriers. |
| 1. | A is incorrect but B is correct. |
| 2. | Both A and B are correct. |
| 3. | Both A and B are incorrect. |
| 4. | A is correct but B is incorrect. |
Subtopic: Applications of PN junction |
From NCERT
NEET - 2024
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The above figure shows the circuit symbol of a transistor. Select the correct statements given below:
| (A) | The transistor has two segments of p-type semiconductor separated by a segment of n-type semiconductor. |
| (B) | The emitter is of moderate size and heavily doped. |
| (C) | The central segment is thin and lightly doped. |
| (D) | The emitter base junction is reverse biased in common emitter amplifier circuit. |
| 1. | (C) and (D) |
| 2. | (A) and (D) |
| 3. | (A) and (B) |
| 4. | (B) and (C) |
Subtopic: Transistor (OLD NCERT) |
From NCERT
NEET - 2023
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A \(\mathrm{p} \text-\)type extrinsic semiconductor is obtained when Germanium is doped with:
| 1. | antimony | 2. | phosphorous |
| 3. | arsenic | 4. | boron |
Subtopic: Types of Semiconductors |
73%
From NCERT
NEET - 2023
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Subtopic: Logic gates |
62%
From NCERT
NEET - 2023
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