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Physics Tutorial 16.14 - Alternating Current. LC Circuits

There are 5 lessons in this physics tutorial covering Alternating Current. LC Circuits. The tutorial starts with an introduction to Alternating Current. LC Circuits and is then followed with a list of the separate lessons, the tutorial is designed to be read in order but you can skip to a specific lesson or return to recover a specific physics lesson as required to build your physics knowledge of Alternating Current. LC Circuits. you can access all the lessons from this tutorial below.

In this Physics tutorial, you will learn:

  • What are the main features of a LC circuit?
  • What is AC current? How is it obtained?
  • What happens to the energy in a LC circuit?
  • What kind of function is more appropriate to describe the quantities involved in a LC circuit?
  • What is the mechanical analogue of a LC circuit? Which are the corresponding quantities?
  • How to calculate the angular frequency of LC oscillators?
  • What is the differential equation of LC oscillators? What is its solution?
  • How to calculate the potential difference in a LC circuit?

Introduction

Consider again the example in which a magnet moves towards or away from a coil. What happens to the direction of the current induced in the coil? Is it always the same?

What is frequency? What is its unit? (Recall the frequency of spring oscillations and that of circular motion to answer this question).

Choose an electric device you have at home. Look at the plate in which all operating values are shown. How many hertz (Hz) does the plate read?

Now do the same thing with another device. How many hertz does it read? What conclusion do you draw about the operating frequency of electric devices?

This tutorial is about alternating current, which is a type of current produced through induction. Then, we will explain how RC circuits operate, especially in regard to the resistance each component shows.

Please select a specific "Alternating Current. LC Circuits" lesson from the table below, review the video tutorial, print the revision notes or use the practice question to improve your knowledge of this physics topic.

Magnetism Learning Material
Tutorial IDPhysics Tutorial TitleTutorialVideo
Tutorial		Revision
Notes		Revision
Questions
16.14Alternating Current. LC Circuits
Lesson IDPhysics Lesson TitleLessonVideo
Lesson
16.14.1LC Oscillations
16.14.2Electrical to Mechanical Analogy between Two Oscillating Systems
16.14.3LC Oscillations - A Quantitative Approach
16.14.4Angular Frequency
16.14.5Potential Difference in a LC Circuit

Whats next?

Enjoy the "Alternating Current. LC Circuits" physics tutorial? People who liked the "Alternating Current. LC Circuits" tutorial found the following resources useful:

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  2. Magnetism Revision Notes: Alternating Current. LC Circuits. Print the notes so you can revise the key points covered in the physics tutorial for Alternating Current. LC Circuits
  3. Magnetism Practice Questions: Alternating Current. LC Circuits. Test and improve your knowledge of Alternating Current. LC Circuits with example questins and answers
  4. Check your calculations for Magnetism questions with our excellent Magnetism calculators which contain full equations and calculations clearly displayed line by line. See the Magnetism Calculators by iCalculator™ below.
  5. Continuing learning magnetism - read our next physics tutorial: Introduction to RLC Circuits

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