Digital Logic MCQ - Combinational Circuits
- A Propagation delay is the time required for a gate to change its state
- B Noise immunity is the amount of noise which can be applied to the input of a gate without causing the gate to change state
- C Fan-in of a gate is always equal to fan-out of the same gate
- D Operating speed is the maximum frequency at which digital data can be applied to a gate
Answer is C as
if X= 0 then X NAND 1 = 1 = X'
if X=1 then X NAND 1= 0= X'
In Option (d)
if X= 0 then X NOR 0 = 1 = X'
if X=1 then X NOR 1= 0 X'
