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The output y, when all three inputs are ...


The output y, when all three inputs are first high and then low, will respectively be

A

1, 0

B

1, 1

C

0, 0

D

0, 1

Text Solution

Verified by Experts

The correct Answer is:
D
Let inputs A, B and C are given to the circuit.

Gate-I is AND gate, gate-II is NAND gate.
Output `Y=bar((A*B*C))`
when A=1, B=1, C=1, then `Y=bar((1.1)*1)=bar(1.1)=bar(1) =0`
when A=0, B=0, C=0 then `Y=bar((0*0)*0)=bar(0.0)=bar0=1`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SEMICONDUCTORS-Exercise 1 ( TOPICAL PROBLEMS )
  1. The voltage gain of an amplifier with 9% negative feedback is 10. The ...

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  2. The minimum potential difference between the base and emitter required...

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  3. In the CB mode of a transistor, when the collector voltage is changed ...

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  4. Symbolic representation of four logic gates are shown as

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  5. Symbolic representation of NOR gate is

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  6. The output of given logic circuit is

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  7. To get an output 1 from the circuit shown in the figure, the input mus...

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  8. The circuit is equivalent to

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  9. The output y, when all three inputs are first high and then low, will ...

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  10. An AND gate is following by a NOT gate in series. With two inputs A & ...

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  11. Which logic gate is represented by the following combination of logic ...

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  12. To which logic gate does the truth table given below correspond ?

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  13. In Boolean algebra A + B = Y implies that :

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  14. Digital circuit can be made by repetitive use of

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  15. If A = B = 1, then in terms of Boolean algebra the value of A.B + A is...

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  16. For the given combination of gates, if the logic states of inputs A,B,...

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  17. Which of the following gates will have an output of 1

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  18. What will be the input of A and B for the Boolean expression bar((A+B)...

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  19. To get an output 1 from the circuit shown in the figure, the input mus...

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  20. Which of the following is the truth table for the circuit below ?

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