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What is the symbol of a NOR gate?

Important Questions on Logic Gates

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ISC Physics Class 12, Part-2>Chapter 21 - Logic Gates>QUESTIONS>Q 15

Why are the NAND and NOR logic gates called digital building blocks?

 

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ISC Physics Class 12, Part-2>Chapter 21 - Logic Gates>QUESTIONS>Q 16
Draw a logic circuit diagram showing how a NAND gate can be converted into a NOT gate?
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ISC Physics Class 12, Part-2>Chapter 21 - Logic Gates>QUESTIONS>Q 17

The output of a two-inputs AND gate is fed to a NOT gate. Draw the logic circuit of the combination of gates. Give its logic symbol and write its truth table.

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ISC Physics Class 12, Part-2>Chapter 21 - Logic Gates>QUESTIONS>Q 18

Arrangement given below represents a logic gate. Complete it showing outputs at C and D.

Question Image

A B C D
0 0    
1 0    
0 1    
1 1    

 

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ISC Physics Class 12, Part-2>Chapter 21 - Logic Gates>QUESTIONS>Q 19

Identify the logic gate whose truth table is drawn its logical symbol.

A B Y
0 0 1
0 1 1
1 0 1
1 1 0
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ISC Physics Class 12, Part-2>Chapter 21 - Logic Gates>QUESTIONS>Q 19
If the output of a NAND gate is fed as input of a NOT gate, name the logic gate formed.
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ISC Physics Class 12, Part-2>Chapter 21 - Logic Gates>QUESTIONS>Q 20
Using several 'NAND' gates, how can you obtain an 'AND' gate? Draw a labelled diagram in support of your answer.
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12th ICSE
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ISC Physics Class 12, Part-2>Chapter 21 - Logic Gates>QUESTIONS>Q 21
The output of a two-inputs OR gate is fed to a NOT gate. Name the new gate obtained. Draw the logic circuit of the combination of gates. Give its logic symbol and write down its truth table.