ELECTROMAGNETISM.
What is electromagnetic vibration?
Electromagnetic waves are created by the vibration of an electric charge. This vibration creates a wave which has both an electric and a magnetic component. ... After a short period of vibrational motion, the vibrating electrons create a new electromagnetic wave with the same frequency as the first electromagnetic wave.
Do magnets have a frequency?
A magnetic field is a force field created by a magnet or as a consequence of the movement of the charges (flow of electricity). ... Static magnetic fields do not vary over time, and as such do not have a frequency (0 Hz). Examples are the fields generated by a permanent magnet or the Earth's magnetic field.
How do magnets affect sound?
The permanent magnet located in front of the electromagnet attracts it and pushes it. The result of the pulse or vibration is transmitted to a membrane and passes through sound waves to our ear. The frequency of the vibrations of the membrane affects the level of sound. The amplitude generated influences the volume.
What do magnets and music have to do with each other?
With the help of magnets and music, metal filings move to the beat in a pattern that looks like dancing. The relationship between magnets and music goes beyond musical instruments. Magnets are used in speakers and headphones as well.Oct 9, 2014
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Why electromagnetic wave can travel in vacuum?
The propagation of electromagnetic waves either in a certain medium or in vacuum is due the the mutual changes between the electric and magnetic field. ... These variations in electric and magnetic fields fields lead to the transfer of the energy which is carried by the EM wave.Aug 20, 2014
What is magnetic noise?
The phenomenon is also called audible magnetic noise, electromagnetic acoustic noise, lamination vibration or electromagnetically-induced acoustic noise, or more rarely, electrical noise, or "coil noise", depending on the application. ...
Is an electromagnet stronger than a permanent magnet?
Electromagnets have the main benefit of manipulating their magnetic pull strength – both by turning the magnet on or off and by adjusting the current. They also feature greater pull strength than permanent magnets. Some estimates place the largest electromagnet at 20 times stronger than the
strongest permanent magnet.
Can a magnet affect your brain?
Studies have shown that it can change the flow of blood in the brain, and turn off neuron groups. Some people, under the influence of high magnetic fields have caused people to have violent seizures, and even lose consciousness, slip into comas, and die.Oct 21, 2011
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