It is the fine wire coil around the magnet with extremely loose multi stranded very fine wire so that it can allow the coil to move easily up and down your magnet flexing a million times without fatigue cracking that would disrupt current flow.
BTW the voice coil is firmly attached to paper cone and when you think about it, a speaker is small linear motor.
sir i've make a speaker through cofee cup and used a big magnet with a hole inside it and wrap a coil around magnet about 20 times then attached the ends of this coil to magnet but it doesn't work? where is am i going wrong?
Thats not exactly how speakers work.Assuming I understand what you have done. A picture or two would help.
Normally a loud speaker will have a magnet - generally cylindrical, with a coil of fine wire wrapped round the magnet - loose so it can move up and down.
Applying your audio to this coil will cause it to move.
To make the sound loud the coil is connected to a paper or plastic cone to spread the sound.
i want to repair the charging light whose battery is dead and want to make it direct so that it can glow up with inserting into socket how is it possible?
I've a charging light containing 15 LEDS but its battery is dead now i want to repair it by replacing another battery but when i replace it with another battery the LED donot glow up to their full capacity how can i glow it up fully?
how can i improve it?sir i've make a speaker through cofee cup and used a big magnet with a hole inside it and wrap a coil around magnet about 20 times then attached the ends of this coil to magnet but it doesn't work? where is am i going wrong?
Comments
Best Answer 5 years ago
Change the voice coil or the cone or the magnet or the air gap comes to mind.
Answer 5 years ago
what is voice coil?
Answer 5 years ago
It is the fine wire coil around the magnet with extremely loose multi stranded very fine wire so that it can allow the coil to move easily up and down your magnet flexing a million times without fatigue cracking that would disrupt current flow.
BTW the voice coil is firmly attached to paper cone and when you think about it, a speaker is small linear motor.
Click the pic to see the entire image..
Answer 5 years ago
if there are two voice coil around the magnet then it effects or not?
Answer 5 years ago
Referring to to the above single voice coil above it is a cut away.
The multiple voice coils probably think the design engineers see some sort of advantage in doing that way.
Answer 5 years ago
what do you mean by voice call? i've used a big magnet with hole inside it and wrap a coil around it almost 20 times is it true or i've to change it?
Answer 5 years ago
Study the pictures of voice coils and how they slides up / down.
5 years ago
What speaker, is this an instructable, pictures description of problem?
Answer 5 years ago
sir i've make a speaker through cofee cup and used a big magnet with a hole inside it and wrap a coil around magnet about 20 times then attached the ends of this coil to magnet but it doesn't work? where is am i going wrong?
Answer 5 years ago
Thats not exactly how speakers work.Assuming I understand what you have done. A picture or two would help.
Normally a loud speaker will have a magnet - generally cylindrical, with a coil of fine wire wrapped round the magnet - loose so it can move up and down.
Applying your audio to this coil will cause it to move.
To make the sound loud the coil is connected to a paper or plastic cone to spread the sound.
Have you done something like this picture?
Answer 5 years ago
yes of course you tell me please that a magnet with a hole inside it work or not..............
Answer 5 years ago
It depends on how you have used it. But it depends on how you use it and how the magnet is magnetized.
The illustration below might work.
Answer 5 years ago
Didn't add picture
5 years ago
where is your image i can't see it...........
Answer 5 years ago
Under the words "
Didn't add picture"
5 years ago
i want to repair the charging light whose battery is dead and want to make it direct so that it can glow up with inserting into socket how is it possible?
Answer 5 years ago
seperate question ask it again as a seperate question
Answer 5 years ago
I've a charging light containing 15 LEDS but its battery is dead now i want to repair it by replacing another battery but when i replace it with another battery the LED donot glow up to their full capacity how can i glow it up fully?
5 years ago
Improve, Or make it work? Those are two different things
Answer 5 years ago
how can i improve it?sir i've make a speaker through cofee cup and used a big magnet with a hole inside it and wrap a coil around magnet about 20 times then attached the ends of this coil to magnet but it doesn't work? where is am i going wrong?
Answer 5 years ago
The coil isn't supposed to be attached to the magnet, Check this video, It should explain what you need
5 years ago
very nice answers you 've given to me.................