If only two leads are used on a variable resistor, it is called a ?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Study for the 1-4 Missouri Valley Test with flashcards and multiple choice questions. Each question includes hints and explanations. Prepare thoroughly for your upcoming exam!

Multiple Choice

If only two leads are used on a variable resistor, it is called a ?

Explanation:
When a variable resistor is wired with only two leads, it functions as a rheostat. A potentiometer is normally a three-terminal device used as a voltage divider; using just two leads makes it behave like a rheostat, but the standard two-terminal name for this setup is rheostat. The other options don’t describe a two-terminal variable resistor: a toggle switch merely opens or closes a circuit, and a regulator maintains a set voltage or current.

When a variable resistor is wired with only two leads, it functions as a rheostat. A potentiometer is normally a three-terminal device used as a voltage divider; using just two leads makes it behave like a rheostat, but the standard two-terminal name for this setup is rheostat. The other options don’t describe a two-terminal variable resistor: a toggle switch merely opens or closes a circuit, and a regulator maintains a set voltage or current.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy