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Q. No.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 |
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A logic circuit provides the output \(Y\) as per the following truth table:
The expression for the output \(Y\) is :
1. \(A \cdot \overline{B}+\overline{A} \)
2. \(\overline{B} \)
3. \(B \)
4. \(A \cdot B+\overline{A}\)
| \(A\) | \(B\) | \(Y\) |
| 0 0 1 1 |
0 1 0 1 |
1 0 1 0 |
1. \(A \cdot \overline{B}+\overline{A} \)
2. \(\overline{B} \)
3. \(B \)
4. \(A \cdot B+\overline{A}\)
Subtopic: Logic gates |
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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 |
57%
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Subtopic: PN junction |
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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 |
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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 |
58%
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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 |
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The \(I\text-V\) characteristics shown above are exhibited by a:
| 1. | light-emitting diode | 2. | zener-diode |
| 3. | photodiode | 4. | solar cell |
Subtopic: Applications of PN junction |
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When the output of an OR gate is applied as input to a NOT gate, then the combination acts as a:
1. NAND gate
2. NOR gate
3. AND gate
4. OR gate
1. NAND gate
2. NOR gate
3. AND gate
4. OR gate
Subtopic: Logic gates |
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The output \(Y\) for the inputs \(A\) and \(B\) of the given logic circuit is:
1. \(A\cdot B\)
2. \(\overline{A}\cdot\overline{B}\)
3. \(A+B\)
4. \(\overline{A}+\overline{B}\)
1. \(A\cdot B\)
2. \(\overline{A}\cdot\overline{B}\)
3. \(A+B\)
4. \(\overline{A}+\overline{B}\)
Subtopic: Logic gates |
63%
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