In this video, electrical engineer Barron Stone highlights a simple RL circuit consisting of a resistor and an inductor in series. Learn how the current through an inductor changes when a voltage is applied. Explore the relationship between voltage and cu
- [Instructor] I can use my oscilloscope…to watch how the current through an inductor changes…as it stores and releases energy.…To demonstrate that, I'll use this simple circuit…which consists of a resistor and an inductor…in series with each other…connected to a voltage source through a switch.…This is called an RL circuit,…because it's composed of only resistors,…inductors and a voltage…or current source to provide power.…I'm interested in seeing how the current…through the inductor changes,…but, since my oscilloscope is only designed…to measure the voltage between two points,…I can't directly measure the current passing through a wire.…
Since the resistor and inductor…are in series with each other…any current that passes through the inductor…will also pass through the resistor,…and the voltage across the resistor…will be directly proportional to…the current through it due to Ohm's Law.…Therefore, by measuring the voltage…across the resistor I can still see…how the current is changing through…the resistor and the inductor.…
- Reading electrical schematics
- Building circuits on breadboards
- Reviewing types of static and variable resistors
- Reading resistor color codes
- Measuring resistance with a DMM
- Measuring resistive sensors with an Arduino microcontroller
- Making electrical signal measurements with an oscilloscope
- Measuring AC voltage with a DMM
- Understanding the time domain and frequency domain
- Designing passive low-pass and high-pass filters
- Reviewing reactive RC and RL circuits
- The relationship between capacitors and inductors
Skill Level Beginner
Learning to use MakerBot 3D Printerswith Kacie Hultgren1h 5m Appropriate for all
Learning Arduino: Pulse Width Modulationwith Rae Hoyt1h 16m Intermediate
1. Building Circuits
Read electrical schematics6m 25s
3. Resistive Circuits
4. Oscilloscope Measurements
6. Alternating Current
7. Electrical Signals
8. Reactive Circuits
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.