Question

Justify the output waveform( Y ) of the OR gate for the following inputs A and B given in figure.

Answer 1

Note the following `:`
At `t lt t_(1) , A = 0 ,B=0, ` Hence Y= 0
For `t_(1) ` to `t_(2) , A =1 , B = 0, ` Hence `Y =1`
For `t_(2)` to `t_(3), A = 1, B = 1 ,` Hence `Y =1`
For `t_(3) ` to `t_(4), A =0 , B = 1 , ` Hence `Y = 1 `
For `t_(4)` to `t_(5), A =0 , B= 0 ,` Hence `Y = 0`
For `t_(5)` to `t_(6), A = 1 , B= 0,` Hence `Y= 1 `
For `t gt t_(6) , A = 0 , B= 1 ,` Hence `Y = 1 `
Therefore the waveform Y will be as shown in the Figure.