Question

The flip-flop is only activated by _____________

(a) Positive edge trigger

(b) Negative edge trigger

(c) Either positive or Negative edge trigger

(d) Sinusoidal trigger

This question was posed to me in a national level competition.

My question comes from Triggering of Flip Flops in chapter Flip-Flops of Digital Circuits

Answer 1

Correct answer is (c) Either positive or Negative edge trigger

The best I can explain: Flip flops can be activated with either a positive or negative edge trigger.