The electromagnetic wave is "modulated" (changed) to represent the signal. For example, in AM (amplitude modulation), the strength (amplitude) of the wave is increased or decreased, according to the signal.
No.
Light waves carry both electrical and magnetic energy, as they are electromagnetic waves. Sound waves do not carry electrical or magnetic energy; instead, they are mechanical waves that propagate through a medium, typically air.
No, sound waves do not carry electrical or magnetic energy. Sound waves are vibrations of particles in a medium, such as air, that propagate as mechanical waves through that medium. They do not involve the movement of electric charges or magnetic fields.
The cone on the speaker works as a membrane to vibrate and push the air to create sound waves. The pushing action comes from the electromagnetic forces at work when electrical signals come from a sound source when plugged in and into the transducer.
The instrument that converts electrical energy to sound or image signals in a radio or television is called a speaker for sound signals and a screen or monitor for image signals. These devices receive electrical signals and convert them into audible sound waves or visual images for the viewer.
No.
Light waves carry both electrical and magnetic energy, as they are electromagnetic waves. Sound waves do not carry electrical or magnetic energy; instead, they are mechanical waves that propagate through a medium, typically air.
Sound waves are converted to electrical signals through a process called transduction. This occurs in devices like microphones, where sound waves cause vibrations in a diaphragm, generating an electrical current that corresponds to the sound's frequency and amplitude. Similarly, speakers convert electrical signals back into sound waves by using electromagnetic forces to vibrate a diaphragm, producing audible sound.
No, sound waves do not carry electrical or magnetic energy. Sound waves are vibrations of particles in a medium, such as air, that propagate as mechanical waves through that medium. They do not involve the movement of electric charges or magnetic fields.
The cone on the speaker works as a membrane to vibrate and push the air to create sound waves. The pushing action comes from the electromagnetic forces at work when electrical signals come from a sound source when plugged in and into the transducer.
a speaker's 'coil' (and magnet) converts electrical signals to sound
The instrument that converts electrical energy to sound or image signals in a radio or television is called a speaker for sound signals and a screen or monitor for image signals. These devices receive electrical signals and convert them into audible sound waves or visual images for the viewer.
In a telephone, sound vibrations from a speaker's voice cause a diaphragm in the microphone to vibrate. These vibrations create variations in air pressure, which are then converted into corresponding electrical signals through electromagnetic induction or capacitance. The electrical signals are then transmitted through the telephone network and can be reconverted into sound at the receiving end by a speaker. This process allows for the transmission of audio information over distances.
Sound is turned into electrical signals by a device called a microphone. Microphones convert sound vibrations into electrical impulses that can then be processed or recorded by various electronic devices.
Radio antennas work by converting electrical signals into electromagnetic waves that can travel through the air. When a radio station transmits a signal, the antenna sends out electromagnetic waves. When a radio receiver picks up these waves, the antenna converts them back into electrical signals that can be processed and heard as sound. This process allows for the transmission and reception of radio signals over long distances.
Waves can carry energy and information across space. The type of wave determines what exactly is being carried - for example, sound waves carry energy that we perceive as sound, while electromagnetic waves carry energy and information in the form of light or radio signals.
When you turn a radio on, electrical energy from the battery is transformed into sound energy and electromagnetic waves, allowing you to hear radio signals.