Why does the JK flip-flop toggles on the 'negative edge' of its clock input when its inputs are connected to +v (i.e when j=1 , k=1)? - Quora
D-latch-based positive edge-triggered D flip-flop. | Download Scientific Diagram
File:Negative-edge triggered master slave D flip-flop.svg - Wikipedia
JK Flip-Flop Explained | Race Around Condition in JK Flip-Flop | JK Flip- Flop Truth Table, Excitation table and Timing Diagram - ALL ABOUT ELECTRONICS