Ramon cruz, Austin Legrant, Wyatt page
THE MICROPHONES are a type of transducer a device which converts energy from one form to another. Microphones convert acoustical energy (sound waves) into electrical energy. Sound waves in the air (from your voice, for example) make the membrane vibrate. These vibrations move the permanent magnet back and forth, changing the magnetic field in the iron bolt. This changing magnetic field makes electrical current flow in the wire wrapped around the bolt. This current can be detected by recording equipment. (http://www.mediacollege.com/audio/microphones/how-microphones-work.html)
How humans have used electromagnetism to improve our lives
security cameras use electromagnetism. all of the power that goes through them so they can just be able to work and move around.
another way that we have used it to improve our lives is the technology that we have came up with to help us with our lives. on the computers when we use it we are using the mechanical parts of the computer and the more we use it the more electric energy comes out of the computer and therefore it makes the computer warmer because it is doing work.
Iphones are another way that have improved our lives. we have came from land lines to big brick phones and then to Iphones. iphones use electricity and we can communicate all over the world now and it has become far more advanced in every way possible .
During his lifetime, Tesla invented fluorescent lighting, the Tesla induction motor and developed the alternating current (AC) electrical supply system that included a motor and transformer, and 3-phase electricity.Ten years after patenting a successful method for producing alternating current, Nikola Tesla claimed the invention of an electrical generator that would not consume any fuel. This invention has been lost to the public. Tesla stated about his invention that he had harnessed the cosmic rays and caused them to operate a motive device.