12th Class Physics Semiconducting Devices Question Bank Semiconducting Devices Conceptual Problems

Identify the logic gates marked P and Q in the given logic circuit. Write down the output at X for the inputs (i) \[A=0,B=0\] and (ii) \[\mathbf{A}\text{ }=\text{ }\mathbf{1},\text{ }\mathbf{B}\text{ }=\text{ }\mathbf{1}.\]

Answer:

The gate P is NAND gate and gate Q is OR gate.

Input A Input B Output of NAND gate\[\Upsilon =\overline{A.B}\] Output of OR gate \[X=B+\Upsilon \]

0 0 1 1

1 1 0 1

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Input A	Input B	Output of NAND gate\[\Upsilon =\overline{A.B}\]	Output of OR gate \[X=B+\Upsilon \]
0	0	1	1
1	1	0	1

12th Class Physics Semiconducting Devices Question Bank Semiconducting Devices Conceptual Problems

question_answer Identify the logic gates marked P and Q in the given logic circuit. Write down the output at X for the inputs (i) \[A=0,B=0\] and (ii) \[\mathbf{A}\text{ }=\text{ }\mathbf{1},\text{ }\mathbf{B}\text{ }=\text{ }\mathbf{1}.\]

Identify the logic gates marked P and Q in the given logic circuit. Write down the output at X for the inputs (i) \[A=0,B=0\] and (ii) \[\mathbf{A}\text{ }=\text{ }\mathbf{1},\text{ }\mathbf{B}\text{ }=\text{ }\mathbf{1}.\]