Question

The number of flip-flops used in a decade counter is _____

• A. 8
• B. 5
• C. 4
• D. 10

Hint:

For a decade counter, 4 flip-flops are needed, as 4 bits can represent up to 16 distinct states, which is enough for counting 10 states.

Answer 1

The Correct Option is C

A decade counter requires 4 flip-flops to count from 0 to 9. This is because a 4-bit binary counter can represent numbers from 0 to 15, and since we need to count only up to 9, 4 flip-flops are sufficient.