Recommended PYQs (STRICTLY NCERT Based) Semiconductor Electronics Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

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.

Q1:

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Subtopic: Applications of PN junction |

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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. \(A \cdot B+\overline{A}\)

Q2:

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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

Q3:

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Subtopic: Logic gates |

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Choose the correct circuit which can achieve the bridge balance :

1.		2.
3.		4.

Q4:

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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.

Q5:

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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. \(A=0,B=0,Y=1\)

Q6:

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Subtopic: Logic gates |

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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.