How do loud speakers work?

Question

Scientific anwers only please

Answer 1

An electromagnet is located inside a fixed magnet and attached to a piece of (usually) cardboard known as a cone.

As sound is sent to the speaker as an electrical wave, the electromagnent moves within the field of the fixed magnet, and as it moves it moves the cone and creates a sound wave.

Answer 2

An amp (amplifier) increases the signal. Then, this in converted into sound using a speaker.

Sound is compression of air. Speakers generate this by vibrating at varying frequencies dictated by the signal they receive. This is done with a small magnet pushing the diaphragm (the main circular bit of the speaker) in and out to create the air pressures our ears perceive as sound.

You can feel this by toughing the diaphragm and playing loud bass music(low frequencies)

A microphone works exatly the same but in reverse. In fact, you can use a large set of headphones as a micropone.

Answer 3

A loudspeaker is one of many forms of motor/generator.

It consists of a coil of wire suspended in a magnetic field.

Attached to the coil is a diaphragm or cone.

When current is passed through the coil it creates a magnetic field around the coil. This field interacts with the fixed field in which the coil is suspended causing the coil, and its attached diaphragm/cone, to move, producing a pressure wave.

This is the motor effect, exploited in a loudspeaker.



If, on the other hand, a pressure wave causes the diaphragm, and therefore the coil, to move, the relative movement between the coil and the field in which it is suspended causes a current to be induced in the coil.

This is the generator effect, exploited in a microphone.

Answer 4

more power going to amp to speakers loud pitch turn up the vol

Answer 5

Crank it up....Dude!.....sorry, i couldn't resist.