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Two signals A, and B shown in Fig. are u...

Two signals A, and B shown in Fig. are used as two inputs of an AND gate obtain its output wave form. Draw the logic symblo of AND gate.

Text Solution

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For AND gate, output `y=A.B` and for NAND gate `y_(1)=bar(A.B)`.
For time less than 1, `A=0, B=1, y=0, y_(1)=1`
For time 1 to 2, `A=1, B=1, y=1, y_(1)=0`
For time 2 to 3, `A=1, B=0, y=0, y_(1)=1`
For time 3 to 4, `A=0, B=0, y=0, y_(1)=1`
For time 4 to 5, `A=0, B=0, y=0, y_(1)=1`
For time 5 to 6, `A=1, B=1, y=1, y_(1)=0`
For time 6 to 7, `A=0, B=0, y=0, y_(1)=1`
For time 7 to 8, `A=0, B=1, y=0, y_(1)=1`
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Knowledge Check

  • If A and B are two inputs in AND gate, then AND gate has an output of 1 when the values of A and B are

    A
    A=0,B=0
    B
    A=1,B=1
    C
    A=1,B=0
    D
    A=0,B=1

  • If A and B are two inputs in AND gate, then AND gate has an output of 1 when the values of A and B are

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    `A=0,B=0`
    B
    `A=1,B=1`
    C
    `A=1,B=0`
    D
    `A=0,B=1`

  • The real time variation of input signals A and B are as shown below. If the inputs are fed into NAND gate, then select the output signal from the following :-

    A
    B
    C
    D

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