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Many of the EM waves present on earth's environment come from the sun. The sun's high temperature allows it to give off countless EM waves. In addition to the sun , technology is a source of EM waves that humans use for a wide variety of purposes..
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ViviElectromagnetic waves are produced by accelerating electric charges, such as in the movement of electrons in an antenna during radio transmission, or in the vibrations of atoms and molecules in the process of thermal radiation. Other sources include charged particles moving in magnetic fields, such as in the sun during solar flares, and the transitions of electrons between energy levels in atoms and molecules during the emission of light.
Electromagnetic waves are generated whenever electric voltage is applied to a conductive material. In an antenna there is both voltage and current. Since the energy has nowhere to go it creates a field around the conductor. When the voltage is reversed some of the energy escapes as electromagnetic waves. Another useful source is the magnatron in a microwave oven. Same principle but the wavelength is shorter.
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Are electromagnetic waves usually given off by sources at high temperatures?
Yes, electromagnetic waves are typically emitted by sources at high temperatures. This is because the thermal energy of the particles in the object causes them to vibrate and move, producing electromagnetic radiation as a result. The higher the temperature, the more energy the particles have, leading to the emission of higher frequency electromagnetic waves.
Radiant energy is produced by?
Radiant energy is produced by sources such as the sun, light bulbs, fire, and other sources that emit electromagnetic waves in the form of light. It is a type of energy that travels through space in the form of electromagnetic waves.
Give two sources of EM waves in the Earths environment?
Two sources of electromagnetic waves in the Earth's environment are the sun, which emits a wide range of electromagnetic radiation across the spectrum, and human-made sources such as radio and television transmissions, Wi-Fi signals, and cell phone networks.
What type of energy is carried by electromagnetic waves?
Electromagnetic waves carry electromagnetic energy.
What electromagnetic waves have the longest wavelengths?
Radio waves have the longest wavelengths among electromagnetic waves.
