Question

Site:.Ac.In a 4-bit-ripple-carry binary adder is implemented by using four full adders. The total propagation time of

Answer 1

here mention xor is twice of and/or so and/or is 1.2ms so xor is 2.4 ms & 1 hald adder is 1xor+1and so= 3.6

& a full adder is implemented wt 2 half adder +1 or gate = 2*3.6+1.2= 8.4

4full adder =4*8.4= 33.6

Hope this helps you ☺️☺️✌️✌️❤️❤️