Electronic circuits utilize various fixed and variable resistive components to control voltage, limit current, and calibrate operating points. Match each resistor type on the left with its primary functional description or application on the right. Which pairs correctly match each component to its function?
- PotentiometerA three-terminal variable resistor that provides an adjustable output voltage division across a resistive track via a movable wiper.
- RheostatA two-terminal variable resistor connected in series to regulate current flow through a circuit branch.
- Trimmer Resistor (Trimpot)A miniature variable resistor mounted on a printed circuit board for occasional calibration and fine-tuning during service.
- Wirewound ResistorA heavy-duty fixed or adjustable component built by wrapping resistance wire around an insulating ceramic core to dissipate high power.
Cevap
Potentiometer matches the three-terminal voltage divider description; Rheostat matches the two-terminal series current regulator description; Trimmer Resistor matches the miniature calibration component description; Wirewound Resistor matches the high-power coiled-wire construction description.
Each component is mapped directly according to its terminal count, internal construction, and operational role: Potentiometers are three-terminal voltage dividers; Rheostats are two-terminal series current controllers; Trimmers (trimpots) are compact PCB calibration resistors; Wirewound resistors are heavy-duty components constructed with wire coils around a ceramic core for high-power dissipation.
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Anahtar Kavram
Classification, terminal configuration, and circuit applications of fixed and variable resistors.
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