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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-V characteristics lies in the IV quadrant of the given graph. |
| B. | In a reverse-biased pn junction diode, the current measured in (μA), 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 |
58%
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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⋅¯B+¯A
2. ¯B
3. B
4. A⋅B+¯A
| A | B | Y |
| 0 0 1 1 |
0 1 0 1 |
1 0 1 0 |
1. A⋅¯B+¯A
2. ¯B
3. B
4. A⋅B+¯A
Subtopic: Logic gates |
69%
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The output (Y) of the given logic gate is similar to the output of an/a:
1. NOR gate
2. OR gate
3. AND gate
4. NAND gate
1. NOR gate
2. OR gate
3. AND gate
4. NAND gate
Subtopic: Logic gates |
64%
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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 |
75%
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Which input (A,B)−output (Y) combination correctly represents the given logic circuit?
| 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 |
61%
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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: Applications of PN junction |
58%
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The I-V characteristics shown below are exhibited by a:
| 1. | Light-emitting diode | 2. | Zener diode |
| 3. | Photodiode | 4. | Solar cell |
Subtopic: Applications of PN junction |
67%
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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 |
86%
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The output Y for the inputs A and B of the given logic circuit is:
| 1. | A⋅B | 2. | ¯A⋅¯B |
| 3. | A+B | 4. | ¯A+¯B |
Subtopic: Logic gates |
72%
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