Loudspeakers

Cards (9)

How do loudspeakers and headphones produce soundwaves?
By using the variations in an alternating current
Explain how this loudspeaker produces sound waves
The current that travels through the coil experiences a force , due to the magnetic field , which causes the speaker cone to move . The alternating current causes the direction of the force to alternate which makes the speaker cone oscillate and create sound waves
What happens if you increase the electrical power / size of the current in a loudspeaker?
A larger force will be produced , so the cone will oscillate with a higher amplitude and produce louder soundwaves
What does the frequency of the sound wave match?
The frequency of the alternating current
In a loudspeaker, what will a higher frequency produce?
A higher pitched sound
In a loudspeaker, what will a lower frequency produce?
A lower pitched sound
What does the size of the speaker affect?
How quickly or slowly the cone can oscillate
In a loudspeaker , what is a large cone better suited for?
Low - pitched sounds
In a loudspeaker , what is a large cone better suited for?
High - pitched sounds