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fricke
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I understand that EMF is generated by moving a closed loop of wire through a constant magnetic field. I am confused about one thing, who is actually doing work here? (of course it is not magnetic field).
fricke said:and one more question. Can EMF be generated through non-constant magnetic field? say, the magnetic field is changing with time.
EMF stands for electromagnetic field, which is a type of radiation that is created when an electric current flows. It is generated by any device or appliance that uses electricity, such as power lines, cell phones, and computers.
There is still ongoing debate and research about the potential health effects of EMF. Some studies suggest that prolonged exposure to EMF may increase the risk of certain health issues, such as cancer and neurological disorders. However, more research is needed to fully understand the impact of EMF on human health.
EMF can come from both natural and man-made sources. Natural sources include the Earth's magnetic field and solar radiation. Man-made sources include power lines, electrical wiring, and electronic devices.
EMF levels can be measured using a device called an EMF meter. This device measures the strength of the electromagnetic field in a given area. There are different types of EMF meters, such as single-axis and tri-axis meters, which measure EMF in different directions.
Some ways to reduce exposure to EMF include using hands-free devices for cell phone calls, keeping electronic devices away from the body, and limiting the use of electronic devices before bedtime. It is also important to maintain a safe distance from sources of EMF, such as power lines and electrical substations.