The number of Flip Flops required for constructing a MOD 12 counter is_____.

Question

Question

This question was previously asked in

ALP CBT 2 Electronic Mechanic Previous Paper: Held on 21 Jan 2019 Shift 2

Answer 1

Concept:

For an ‘n’ flip flop counter,

To construct any mod counter, the minimum number flip flops required such that: Modulus ≤ 2ⁿ

Where n is the number of counters.

For example,

A MOD-5 counter requires:

2ⁿ ≥ 5

∴ 3 Flip Flops

F2 Neha Madhu 17.10.20 D8

Calculation:

Number no. of flip – flops are required to construct a mod-12 counter is obtained as:

2ⁿ ≥ 12 i.e. n = 4