Amateur Extra › E7 Practical Circuits › E7A01
E7A01
Which circuit is bistable?
Pick an answer to check it.
Answer: C. A flip-flop
A flip-flop has two stable states and stays in either one until it is told to change, so it is bistable. Gates like AND and OR have no memory; their output simply follows the inputs.
Tip: Flip-flop: two stable states, bi-stable.