Phones Interfering With Speker

[tylerbrowner]

A cople of days ago i was in my sciense class and my teacher put his phone inivertaintly nexed to a specker that was connected to his computer. It started to make static noies he could not figer out why. I went up to the specker and put my phone nexed to it and it did notheing.I called someone and it started making noises with my phone. we tried it with a few other phones and got the same results.I was wondering why. I know that phones use microwaves but vary small amounts. I know that a specker works by a elctromagnet geting a elcterical signal from your pnone or computer or whatever and it pushes a nother magnet with the same polarity away to move a bowl shaped thing to make a vibertion in ther air. I thought that maybe the microwaves would mess with the magnitic feild. I dont really know so i was wondering what you guys think

 

Sorry if i had bad grammer i am terrible with this kind of stuff its hard for me to take thoughts from my head and put tem down on paper let alone spell anything right

[Endy0816]

This: http://electronics.stackexchange.com/questions/39127/why-do-my-speakers-make-a-noise-when-my-cell-phone-gets-a-call

 

probably has the information you desire. I'll see if I can find more info in the morning.

 

Spell Check is your friend(and mine ).

[fiveworlds]

It is electromagnetic induction between the phone and speaker.

[Endy0816]

Da. You can use ferrite cores to help limit the problem, though in a Science class seems like it could be useful for demonstration.

[fiveworlds]

You could magnetically shield the speaker. Or just buy a shielded speaker http://m.wikihow.com/Shield-Speakers

http://en.m.wikipedia.org/wiki/Electromagnetic_shielding

Edited August 24, 2014 by fiveworlds