Question

The minimum number of flip-flop required to design a MOD-10 counter is

• A. 3
• B. 10
• C. 4
• D. 5

Answer 1

The correct option is C 4

For N States

$N\le 2^n$

Where n is number of flip-flops

For N =10

$10\le 2^n$

$\Rightarrow n=4$