The loudspeaker Flashcards
What can the coil do
move in and out
What does the tube and coil of wire wrapped around it fit above in a loudspeaker
the tube with the coil wrapped around it fits loosely over the north pole of a magnet
What current is supplied to the coil
Current from the amplifier of a radio
What does the current from the amp make the coil
AN ELECTROMAGNET
What type of current is from the amp
an alternating current
What does alternating current do
change direction
What does the alternating current cause the coil to do
move in and out
What does the coil moving in and out then cause the cone to do
VIBRATE therefore send out sound wave
What is the energy conversion in a loudspeaker
electrical input —-> sound output
Why does the coil move
it experiences a resultant force from the permanent magnet of attracts or repels
