Sandals Beach and Thong Red Outdoor Slipper Comfortable 02 Indoor Flop Flip Fashion Handmade CIOR Men's Classical wqAIAR0 Sandals Beach and Thong Red Outdoor Slipper Comfortable 02 Indoor Flop Flip Fashion Handmade CIOR Men's Classical wqAIAR0 Sandals Beach and Thong Red Outdoor Slipper Comfortable 02 Indoor Flop Flip Fashion Handmade CIOR Men's Classical wqAIAR0 Sandals Beach and Thong Red Outdoor Slipper Comfortable 02 Indoor Flop Flip Fashion Handmade CIOR Men's Classical wqAIAR0 Sandals Beach and Thong Red Outdoor Slipper Comfortable 02 Indoor Flop Flip Fashion Handmade CIOR Men's Classical wqAIAR0 Sandals Beach and Thong Red Outdoor Slipper Comfortable 02 Indoor Flop Flip Fashion Handmade CIOR Men's Classical wqAIAR0


Handmade Men's Red Sandals Beach 02 Slipper and Thong Fashion Comfortable Outdoor Indoor CIOR Classical Flip Flop

Speakers come in all shapes and sizes, enabling you to listen to music on your iPod, enjoy a film at the cinema or hear a friend’s voice over the phone.

In order to translate an electrical signal into an audible sound, speakers contain an electromagnet: a metal coil which creates a magnetic field when an electric current flows through it. This coil behaves much like a normal (permanent) magnet, with one particularly handy property: reversing the direction of the current in the coil flips the poles of the magnet.

Inside a speaker, an electromagnet is placed in front of a permanent magnet. The permanent magnet is fixed firmly into position whereas the electromagnet is mobile. As pulses of electricity pass through the coil of the electromagnet, the direction of its magnetic field is rapidly changed. This means that it is in turn attracted to and repelled from the permanent magnet, vibrating back and forth.

Red and Fashion Men's CIOR Handmade Classical Outdoor Sandals Flop Indoor Flip Slipper Thong Beach 02 Comfortable
The electromagnet is attached to a cone made of a flexible material such as paper or plastic which amplifies these vibrations, pumping sound waves into the surrounding air and towards your ears.


Inside a speaker:
1. Cone
2. Electromagnet (coil)
3. Permanent magnet


 

The frequency of the vibrations governs the pitch of the sound produced, and their amplitude affects the volume – turn your stereo up high enough and you might even be able to see the diaphragm covering the cone move.

To reproduce all the different frequencies of sound in a piece of music faithfully, top quality speakers typically use different sized cones dedicated to high, medium and low frequencies.

A microphone uses the same mechanism as a speaker in reverse to convert sound into an electrical signal. In fact, you can even use a pair of headphones as a microphone!

Find related websites on music with physics.org

See a demonstration of how a speaker responds to an electric current
Comfortable 02 Outdoor Indoor Classical Fashion CIOR Handmade Thong Beach Slipper Flop Sandals Flip Red Men's and Embedded youtube video

Wolky Bronze Leather Womens Jewel Sandals vxqaYxHfw

The folowing links are external



Slipper Classical Red Men's Indoor Fashion Sandals Beach Outdoor and Flop Handmade CIOR Flip Comfortable 02 Thong Red Sandals Fashion Classical Outdoor Flop Men's Beach Comfortable CIOR Thong Flip Slipper 02 and Indoor Handmade