The device that can act as a complete electronic circuit is

Options

A. Junction diode
B. Integrated circuit
C. Junction transistor
D. Zener diode

Answer

To solve the question, "The device that can act as a complete electronic circuit is," we can follow these steps:

### Step 1: Understand the Options
The options provided are:
- Junction Diode
- Integrated Circuit
- Junction Transistor
- Zener Diode

### Step 2: Analyze Each Option
1. **Junction Diode**: This device is primarily used for rectification, which means it converts alternating current (AC) to direct current (DC). It cannot function as a complete electronic circuit on its own.

2. **Integrated Circuit (IC)**: An IC is a miniaturized electronic circuit that can contain various components such as resistors, capacitors, diodes, and transistors. It can perform multiple functions and can be designed to act as a complete electronic circuit.

3. **Junction Transistor**: This device is used for amplification and switching. While it is an essential component in many circuits, it cannot function as a complete circuit by itself.

4. **Zener Diode**: This is used primarily for voltage regulation. Like the junction diode, it cannot operate as a complete electronic circuit on its own.

### Step 3: Conclusion
Based on the analysis, the only option that can act as a complete electronic circuit is the **Integrated Circuit**. An IC can integrate various components to perform complex functions, making it capable of acting as a complete circuit.

### Final Answer
The device that can act as a complete electronic circuit is **Integrated Circuit**.

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