A 4 bit ripple counter and a 4 bit synchronous counter are made by fli – McqOptions

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1.	A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If worst case delay in the ripple counter and the synchronous counter be R and S respectively, then
A.	R = 10 ns, S = 40 ns
B.	R = 40 ns, S = 10 ns
C.	R = 10 ns, S = 30 ns
D.	R = 30 ns, S = 10 ns
Answer» C. R = 10 ns, S = 30 ns

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