Question
What electrical parameter is controlled by a potentiometer?
Answer Options
- A) Inductance
- B) Resistance
- C) Capacitance
- D) Field Strength
Correct Answer: B
Explanation
As noted in T6A02, a potentiometer is a type of variable resistor. By turning its shaft, the operator changes the physical location of the contact point on the resistive element, which directly changes the value of its Resistance.
This variable resistance is then used to control things like volume, tone, or fine-tuning in electronic circuits. Changing the resistance in a circuit controls the flow of current and the voltage drop (Ohm’s Law), thereby regulating the output signal.
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