Feeding the value A to both inputs of a NAND gate yields wha

Feeding the value A to both inputs of a NAND gate yields what value on the output? A A^OverBar 0 1 Feeding the value A to both inputs of a NOR gate yields what value on the output? A A^OverBar 0 1 Feeding the value A to one input of a NOR gate and A^OverBar to the other yields what value on the output? A A^OverBar 0 1 Feeding the value A to one input of a NAND gate and A^OverBar to the other yields what value on the output? A A^OverBar 0 1

Solution

5Ans. B. for a NAND gate when A and B are the two inputs then the output is Y = (A.B)\'

Now when feeding the value A to both the inputs of NAND gate then the output is

Y = (A.A)\' = A\' Since acc to AND laws A.A = A

6Ans. B   for a NOR gate when A and B are the two inputs then the output is Y = (A+B)\'

Now when feeding the value A to both the inputs of NOR gate then the output is

Y = (A+A)\' = A\' Since acc to OR laws A+A = A

7Ans. C   for a NOR gate when A and B are the two inputs then the output is Y = (A+B)\'

Now when feeding the value A to one input and A\' to other input of NOR gate then the output is

Y = (A+A\')\' = 1\' = 0 Since acc to OR laws A+A\' = 1

ie. when A =1 then A + A\' = 1+ 1\'= 1+0 =1

and When A =0 then A+A\' = 0 + 0\' = 0+1 = 1

8Ans. D   for a NAND gate when A and B are the two inputs then the output is Y = (A.B)\'

Now when feeding the value A to one input and A\' to other input of NAND gate then the output is

Y = (A.A\')\' = 0\' = 1 Since acc to AND laws A.A\' = 0

ie. when A =1 then A . A\' = 1. 1\'= 1.0 =0

and When A =0 then A.A\' = 0 . 0\' = 0.1 = 0