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Step 1I'll solve this problem by providing a clear, step-by-step explanation of the three common types of variable resistors.
Step 2: Potentiometers
- A potentiometer is a three-terminal resistor with a sliding or rotating contact - Allows continuous variation of resistance by moving the contact point - Commonly used in volume controls, dimmer switches, and audio equipment - Typical applications include adjusting sound volume, light intensity, and motor speed
Final Answer
1. Potentiometers 2. Rheostats 3. Trimpots (Trimmer Potentiometers)
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