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What are three advantages of transistors?
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Here are **three simple advantages of transistors**:

1. **Small Size**
   Transistors are very small, so they help make electronic devices compact and lightweight.

2. **Low Power Consumption**
   They use very little electricity, which makes them energy-efficient and helps save battery life in portable devices.

3. **Fast Switching**
   Transistors can turn on and off very quickly, which makes them ideal for high-speed electronic circuits like computers and mobile phones.

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