A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it. The term is also used for voice coil linear motors, such as those used to move the heads inside hard disk drives, which produce a larger force and move a longer distance but work on the same principle. (Wikipedia).
AWESOME DEMONSTRATION TESLA COIL!!!
A Tesla coil is a radio frequency oscillator that drives an air-core double-tuned resonant transformer to produce high voltages at low currents. Tesla's original circuits as well as most modern coils use a simple spark gap to excite oscillations in the tuned transformer. More sophisticated
From playlist STATIC ELECTRICITY
Music, Magic and Mayhem with Tesla Coil
I love what you can achieve with a Tesla coil! There are too many details, all talked about in the article in my website. Did you know you can play clear music with electrons?! You can read my articles here: http://www.electroboom.com/?p=575 Follow me on Facebook: http://www.facebook.com/
From playlist Tesla Coil Science
Make a Crystal Radio Coil with Taps
How to make a coil for crystal radios that has taps on it. The coil is useful for many other things too, but this one is designed for the crystal radio I show how to make with step-by-step instructions in the video at the link below. This is just one way to wind the coil. This has 25 turns
From playlist Crystal Radios
Building A REAL Solid State Tesla Coil (For DESKTOP LIGHTNING) | The Complete Guide + PCB Download!
Enjoy this video? Be sure to check out my latest and greatest Tesla coil tutorial, which shows you how to build your own audio-modulated, class-E musical Tesla coil: https://www.youtube.com/watch?v=Hez-R-WF5P0 Most solid-state Tesla coil tutorials are either non-informative, overcomplicat
From playlist Tesla Coils and High Voltage
The Ultimate Tesla Coil Build Guide (HD): EVERYTHING you need to know!
Enjoy this video? Be sure to check out my latest and greatest Tesla coil tutorial, which shows you how to build your own audio-modulated, class-E musical Tesla coil: https://www.youtube.com/watch?v=Hez-R-WF5P0 Tired of the same old Tesla coil demos telling you basic crap everybody knows?
From playlist Tesla Coils and High Voltage
What is Sound? - Quickly Discover What Sound Really Is
What is Sound? This simple demonstration visually shows how sound waves are produced from a vibrating surface. A frequency generator is hooked up to a power amplifier, and the resultant signal is used to drive a loudspeaker. The signal is also sent to an oscilloscope. After listen
From playlist Physics Demonstrations
How to - Home Built Tesla Coil - Winding the Secondary Coil Pt3
We continue our work on the secondary coilform construction. In this video we wind the wire onto the secondary coil!
From playlist Tesla Coils with Billy
Inductor radio and mutual induction!
One wire coil is connected to a radio, and another is connected to a speaker. The two coils are not connected to each other. The radio signal is transmitted through the induced magnetic field caused by the current in the wires. The signal is only received when there is a magnetic flux t
From playlist ELECTROMAGNETISM
How Do Speakers Work? Hello. I’m Dr. Bruce Denardo here in the Physics Department of the Naval Postgraduate School in Monterey, California. The purpose of a loudspeaker is to convert electrical energy into acoustic energy. How does a conventional or dynamic loudspeaker work? In this
From playlist Physics Demonstrations
Monster magnet meets subwoofer...
Keep exploring at https://www.brilliant.org/Brainiac75 . Get started for free, and hurry—the first 200 people get 20% off an annual premium subscription. Speakers play music by magnetism. The stronger the magnet, the louder and better it will usually play. Makes me wonder what will happen
From playlist Monster magnet meets...
21.5 The Force on a Current in a Magnetic Field
This video covers Section 21.5 of Cutnell & Johnson Physics 10e, by David Young and Shane Stadler, published by John Wiley and Sons. The lecture is part of the course General Physics - Life Sciences I and II, taught by Dr. Boyd F. Edwards at Utah State University. This video was produced
From playlist Lecture 21B. Magnetic Forces and Magnetic Fields
Its official, I’m the ‘World’s Most Electrifying Lightning Flutist’.
From playlist Whimsical Science Projects
Speaker: Hendrik Scholz Introduction to SIP Hacking Within the last year VoIP devices and applications flooded the market. SIP (Session Initiation Protocol) became the industry standard although it's still under constant development. VoIP networks converge with the PSTN and thus offer wa
From playlist 22C3: Private Investigations
EEVblog #656 - Pacemaker Monitor Teardown
What's inside a dial-in pacemaker monitor system? Datasheets: LMV824 http://www.ti.com/lit/gpn/lmv824 MAX4330: http://datasheets.maximintegrated.com/en/ds/MAX4330-MAX4334.pdf CNY64 Optocoupler: http://www.vishay.com/docs/83540/cny64.pdf ADSP-2185N DSP http://www.analog.com/static/imported-
From playlist Teardown Tuesday
Classical Physics University of Wisconsin - Madison Executive Producer and Host: Clint Sprott
From playlist The Wonders of Physics with Prof. Sprott - CosmoLearning.com
Bill opens up a computer hard drive to show how it is engineered. He describes how the "head" reads the magnetic information on the disk; reveals how a voice coil motor and a slider controls the position of that head. He also discusses how smooth a disk must be, and briefly mentions a math
From playlist bundle watch engineerguy
How External Hard Drives Are Made! | How It's Made | Science Channel
An inside look at how external hard drives are made! #howitsmade #sciencechannel Stream How It's Made: https://www.discoveryplus.com/show/how-its-made About How It's Made: Explore the fascinating world of how everyday items are manufactured and produced. From aluminum foil to contact len
From playlist Recent Uploads
Classical Physics University of Wisconsin - Madison Executive Producer and Host: Clint Sprott
From playlist The Wonders of Physics with Prof. Sprott - CosmoLearning.com
Classical Physics University of Wisconsin - Madison Executive Producer and Host: Clint Sprott
From playlist The Wonders of Physics with Prof. Sprott - CosmoLearning.com