The combination of the gates shown in the figure below produces 


(1) NOR gate

(2) OR gate

(3) AND gate

(4) XOR gate

Subtopic:  Logic gates |
 70%
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Which logic gate is represented by the following combination of logic gates 

(1) OR

(2) NAND

(3) AND

(4) NOR

Subtopic:  Logic gates |
 72%
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The output of the OR gate is 1 

(1) If both inputs are zero

(2) If either or both inputs are 1

(3) Only if both inputs are 1

(4) If either input is zero

Subtopic:  Logic gates |
 89%
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Which gates are represented by this figure 

(1) NAND gate

(2) AND gate

(3) NOT gate

(4) OR gate

Subtopic:  Logic gates |
 94%
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In a crystal, the atoms are located at the position of

(1) Maximum potential energy

(2) Minimum potential energy

(3) Zero potential energy

(4) Infinite potential energy

Subtopic:  Energy Band theory |
 69%
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The distance between the body centered atom and a corner atom in sodium (a = 4.225 Å) is 

(1) 3.66 Å

(2) 3.17 Å

(3) 2.99 Å

(4) 2.54 Å

Subtopic:  Energy Band theory |
 66%
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In good conductors of electricity, the type of bonding that exists is 

(1) Ionic

(2) Vander Waals

(3) Covalent

(4) Metallic

Subtopic:  Energy Band theory |
 55%
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Bonding is a germanium crystal (semi-conductor) is

(1) Metallic

(2) Ionic

(3) Vander Waal's type

(4) Covalent

Subtopic:  Types of Semiconductors |
 72%
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A P-type semiconductor can be obtained by adding

(1) Arsenic to pure silicon

(2) Gallium to pure silicon

(3) Antimony to pure germanium

(4) Phosphorous to pure germanium

Subtopic:  Types of Semiconductors |
 82%
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The valence of an impurity added to germanium crystal in order to convert it into a P-type semiconductor is

(1) 6

(2) 5

(3) 4

(4) 3

Subtopic:  Types of Semiconductors |
 84%
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