Topic: Digital Circuits
Number of J-K flip flops in modulo 16 binary up-counter are
- A. 16
- B. 4
- C. 8
- D. 2
Answer: B. 4
Explanation: For a binary counter, the maximum modulo $M$ achievable with $n$ flip-flops is $M = 2^n$. For a modulo-16 counter, $16 = 2^n$, which yields $n = 4$. Thus, 4 J-K flip-flops are required.