Question

A flip-flop is also known as

• A. Astable multivibrator
• B. Bistable multivibrator
• C. Monostable multivibrator
• D. 555 timer

Hint:

Think of the name "Flip-Flop": it "flips" to one stable state and "flops" to the other. "Bi" means two, so "Bistable" perfectly describes this two-state behavior.

Answer 1

The Correct Option is B

A flip-flop is the basic storage element in digital electronics, capable of holding one bit of information (either a '0' or a '1'). 1. The Concept of Stability: Multivibrators are classified by the number of stable states they possess:

• Astable: No stable states (it continuously oscillates).

• Monostable: One stable state (it returns to a baseline after a trigger).

• Bistable: Two stable states.

2. Why Flip-Flops are Bistable: A flip-flop will stay in its current state (State 0 or State 1) indefinitely unless a specific external trigger or clock signal forces it to change. Because it has two distinct, stable operating points, it is technically a bistable multivibrator.

3. Role in Memory: This bistability allows flip-flops to "remember" data, making them the primary components of registers, counters, and static RAM (SRAM) cells.