ASVAB Practice Test

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Study for the ASVAB Exam with confidence! Our comprehensive quiz features multiple-choice questions, hints, and explanations tailored to boost your understanding. Prepare effectively and get ready to excel on your exam!

Practice this question and more.

In an electrical circuit, what does a resistor do?

Increases current flow
Decreases voltage
Stores electrical energy
Limits current flow

The correct answer is: Limits current flow

A resistor is a component used in electrical circuits to limit the flow of current. It does this by creating resistance, which reduces the amount of current flowing through the circuit. A resistor does not increase current flow (choice A) or store electrical energy (choice C). While it ultimately may result in a decrease in voltage (choice B), this is not the primary function of a resistor. Therefore, the incorrect options can be ruled out and the correct answer is D.