*Question E7A06:
What is a characteristic of a monostable multivibrator?*  

*Correct Answer is  A: It switches temporarily to an alternate state for a set time*  

### AI Response: (may contain errors)  

A monostable multivibrator is a type of electronic circuit that has one stable state and one unstable state. When triggered, it switches to the unstable state for a predetermined period before returning to the stable state. 

### Correct Answer: A
- **Why it is correct**: A monostable multivibrator switches temporarily to an alternate state (the unstable state) when triggered. The duration of this state is determined by the circuit's timing components (resistors and capacitors). After this time elapses, it automatically returns to its stable state.

### Why the Other Choices are Incorrect:
- **B: It produces a continuous square wave**  
  - This describes an astable multivibrator, which continuously oscillates between two states, producing a square wave output. A monostable multivibrator does not produce a continuous output; it only generates a pulse when triggered.

- **C: It stores one bit of data**  
  - This is characteristic of a flip-flop, which can maintain a state (either 0 or 1) until it is changed by an input signal. A monostable multivibrator does not store data; it only produces a temporary output.

- **D: It maintains a constant output voltage, regardless of variations in the input voltage**  
  - This describes a voltage regulator or a buffer circuit, which stabilizes output voltage against input variations. A monostable multivibrator does not maintain a constant output; it changes state based on triggering.

### Summary
- A monostable multivibrator is characterized by its ability to switch to an unstable state temporarily and then return to a stable state. Understanding the differences between monostable, astable, and flip-flop circuits is crucial for grasping their functions in electronic applications.