Which statement best describes the function of an inductor?

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 $25.99Unlock all

Prepare for the NOCTI Pre-Engineering Exam. Utilize practice questions and detailed explanations to sharpen your engineering skills. Ensure your success with comprehensive study guides!

Multiple Choice

Which statement best describes the function of an inductor?

Explanation:
An inductor’s function is to store energy in a magnetic field created by current flowing through a coil. The energy stored grows with the current and the inductance, described by W = 1/2 L I^2, and when the current tries to change, the magnetic field resists that change by producing a back emf. This magnetic-field energy storage is what lets inductors smooth out current and influence alternating signals. It’s different from a capacitor, which stores energy in an electric field between plates, and from components that convert AC to DC or claim lossless transmission.

An inductor’s function is to store energy in a magnetic field created by current flowing through a coil. The energy stored grows with the current and the inductance, described by W = 1/2 L I^2, and when the current tries to change, the magnetic field resists that change by producing a back emf. This magnetic-field energy storage is what lets inductors smooth out current and influence alternating signals. It’s different from a capacitor, which stores energy in an electric field between plates, and from components that convert AC to DC or claim lossless transmission.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy