Chapter 19: Problem 2645
Which of the following logic gate will have output \(1 ?\)
Chapter 19: Problem 2645
Which of the following logic gate will have output \(1 ?\)
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Get started for freeFor Boolean identities match the pair: (1) \(\underline{\underline{A}}\) (P) \(\underline{\mathrm{A}}+\underline{\mathrm{B}}\) (2) \(\underline{\mathrm{A}+\mathrm{B}}\) (Q) A \cdot B (3) \(\underline{\mathrm{A} \cdot \mathrm{B}}\) (R) \(\underline{A} \cdot \underline{B}\) (4) \(\mathrm{A} \cdot(\underline{\mathrm{A}}+\mathrm{B})\) (S) \(\mathrm{A}\) (A) \((1)-(\mathrm{S}),(2)-(\mathrm{P}),(3)-(\mathrm{Q}),(4)-(\mathrm{R})\) (B) \((1)-(\mathrm{S}),(2)-(\mathrm{R}),(3)-(\mathrm{Q}),(4)-(\mathrm{P})\) (C) (1) - (S), (2) - (Q), (3) - (P), (4) - (R) (D) \((1)-(\mathrm{S}),(2)-(\mathrm{R}),(3)-(\mathrm{P}),(4)-(\mathrm{Q})\)
Zener diode is used as (A) Full. wave rectifier (B) amplifier (C) A.C. voltage regulator (D) D.C. voltage regulator
A n-p-n transistor circuit has \(\alpha=0.985 .\) If $\mathrm{I}_{\mathrm{c}}=9 \mathrm{~mA}\( then the value of \)\mathrm{I}_{\mathrm{b}}$ is (A) \(0.003 \mathrm{~mA}\) (B) \(0.66 \mathrm{~mA}\) (C) \(0.015 \mathrm{~mA}\) (D) \(0.13 \mathrm{~mA}\)
When a P-type semi-conductor is heated: (A) number of holes increases while that of electrons decreases (B) number of electron increases while that of hole decreases (C) number of electrons and holes remains same (D) number of electrons and holes increases equally
In a P-type silicon, which of the following statement is true? (A) Electrons are majority charge carries and trivalent atoms are the dopants (B) Electrons are minority charge carries and pentavalent atoms are dopants (C) Holes are minority charge carries and pentavalent atoms are dopants (D) Holes are majority charge carries and trivalent atoms are dopants
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