Question

To get output 1 for the following circuit, the correct choice for the input is(a) A = 0, B = 1, C = 0(b) A = 1, B = 0, C = 0(c) A = 1, B = 1, C = 0(d) A = 1, B = 0, C = 1

Answer 1

ans is (d) A=1,B=0,C=1

Answer 2

Answer:

D) A =1 B = 0 C = 1

Explanation:

The resultant boolean expression for the given logic circuit will be  =Y=(A+B) C

Trying with let inputs A, B and C given in the options, we will determine which will give output 1 at Y.

If A=0, B=0, C=0

Y=(0+0).0

Y=0

If A=1, B=1, C=0

Y=(0+1).0

Y=1.0

Y=0

If A=1, B=0, C=1

Y=(1+0).1

Y= 1.0

Y=1

If A=0, B=1, C=0

Y=(0+1).0

Y=1.0

Y=0

Thus, among the given options, only options (d) is the correct choice, which means   Output Y=1 only when inputs A=1, B=0 and C=1.