Explore the relationship between the electric current passing through a wire and the magnetic field surrounding it. Learn how electrical inductance can cause crosstalk, where the signal passing through one electronic component can induce unwanted signals
- [Tutor] The physical force that causes…electrically charged particles to interact with each other…is called electromagnetic force…and as the name suggests, electromagnetic force…includes both electricity and magnetism.…Yes, that's electricity, the thing we've been…talking about throughout this course,…things like voltage and current, as well as magnetism,…that mysterious force that makes magnets…stick to a refrigerator.…And there's an important relationship…between electricity and magnetism,…because they're really just two different instances…of the same electromagnetic phenomenon.…
When electrical current flows through a wire,…it creates a magnetic field around the wire.…Now, we can't see or feel that magnetic field,…but it surrounds the wire in a circular pattern…and can interact with other nearby objects.…The strength of that magnetic field is directly related…to the amount of current through the wire.…As the amount of current through the wire increases,…the magnetic field around it grows stronger and expands…
- 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
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