How is sound priduced in a human larynx and a loudspeaker?
Dear student
The larynx or voice box is used to produce sound in humans. It is present near the upper part of wind pipe,consisting of two vocal cords stretched in such a manner that leave only a small slit for air to pass through. It is because of this slit that whenever we try to speak or produce a sound, air is pushed out of lungs through the slit, causing the vocal cords to vibrate. This vibration of vocal cords is what produces sound. Whereas a loudspeaker consists of a wire or coil wrapped around a permanent magnet. Whenever variable current or AC ( alternate current) is passed through the coil, the coil produces it's own variable magnetic field due to electro-magnetic induction causing for it to constantly get attracted or repelled by the permanent magnet. Now as a screen and a conical shaped device is attached to the coil, vibration of the coil causes vibration of the screen hence, producing sound.
Hope it helps!
Regads
The larynx or voice box is used to produce sound in humans. It is present near the upper part of wind pipe,consisting of two vocal cords stretched in such a manner that leave only a small slit for air to pass through. It is because of this slit that whenever we try to speak or produce a sound, air is pushed out of lungs through the slit, causing the vocal cords to vibrate. This vibration of vocal cords is what produces sound. Whereas a loudspeaker consists of a wire or coil wrapped around a permanent magnet. Whenever variable current or AC ( alternate current) is passed through the coil, the coil produces it's own variable magnetic field due to electro-magnetic induction causing for it to constantly get attracted or repelled by the permanent magnet. Now as a screen and a conical shaped device is attached to the coil, vibration of the coil causes vibration of the screen hence, producing sound.
Hope it helps!
Regads