*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. Here's a breakdown of why the correct answer is correct and why the other choices are incorrect:

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

   - A monostable multivibrator is designed to switch from its stable state to an unstable state when triggered. It remains in this unstable state for a predetermined period before returning to its stable state. This behavior is why it's often referred to as a "one-shot" pulse generator.

2. **Incorrect Choices:**

   - **B: It produces a continuous square wave**
     - This describes an astable multivibrator, not a monostable one. An astable multivibrator has no stable state and continuously oscillates between two states, producing a continuous square wave.

   - **C: It stores one bit of data**
     - This describes a bistable multivibrator, also known as a flip-flop. A bistable multivibrator has two stable states and can store one bit of data by remaining in one of these states until triggered to switch.

   - **D: It maintains a constant output voltage, regardless of variations in the input voltage**
     - This describes a voltage regulator, not a multivibrator. A voltage regulator is designed to provide a constant output voltage despite changes in input voltage or load conditions.

In summary, the key characteristic of a monostable multivibrator is its ability to switch to an alternate state temporarily for a set duration, which is why choice A is correct.