Jump to content

Life

A blog by tjpapaleo in General

  • entries
    27
  • comments
    2
  • views
    3,677

Speak! -er

tjpapaleo

Entry posted by tjpapaleo

568 views

 Share

Speak! Speak! I'm not talking to a dog, I'm talking to my speaker. Why won't it work? Maybe if I learn the physics of it, I could probably fix it. So, inside a speaker, an electromagnet is placed in front of a regular magnet. The regular  magnet is fixed hard into position where the electromagnet is moveable. As electricity passes through the coil of the electromagnet, the direction of its magnetic field is rapidly changed. Meaning, that it is then attracted and repelled from the regular magnet, vibrating back and forth, creating a frequency. The frequency of the vibrations causes the pitch of the sound produced, and the amplitude affects the volume; turn your stereo up high enough and you might even be able to see the speaker move. Also, a microphone uses the same mechanics as a speaker in reverse to convert sound into an electrical signal. In fact, you can even make a pair of headphones into microphone (off topic but in case you were wondering). So, with that maybe I can fix my speaker finally. Thanks physics.

 Share

0 Comments

Recommended Comments

There are no comments to display.

Guest
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×

Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

APlusPhysics Books

APlusPhysics Books

×
×
  • Create New...