Final answer:
A resistor is the device used to limit or reduce electric current in a circuit.
Step-by-step explanation:
The correct device to limit or reduce electric current in a circuit is the resistor. A resistor is an electrical component that restricts the flow of current in a circuit. It is made of a material with high resistance to the flow of electric charge. When a resistor is connected in series with other components in a circuit, it decreases the overall current in the circuit.
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