Q:

What is "emf" in physics?

A:

Quick Answer

EMF is the abbreviation for electric and magnetic fields. EMF's are produced by the use of electrical power, and they are a type of radiation that are categorized as ionizing and non-ionizing.

Know More

Full Answer

Non-ionizing radiation is considered harmless to humans. This type of radiation is created by computers, cellphones and power lines. Ionizing EMFs are produced by some x-rays, ultraviolet light and gamma rays. Some studies have shown a connection between EMF exposure and childhood leukemia, while others have not. EMF detectors are used to identify EMF levels, and they are a popular tool used by ghost hunters since they believe ghosts create fluctuations in magnetic fields.

Learn more about Electricity

Related Questions

  • Q:

    What is a "hertz" in physics?

    A:

    The term "hertz," in physics, defines a standard unit of frequency measurement and is equal to one cycle per second; it is abbreviated as "Hz." It was named after Heinrich Hertz (1857-1894), a German physicist who was the first person to prove the existence of electromagnetic waves.

    Full Answer >
    Filed Under:
  • Q:

    What is mA in electricity?

    A:

    The abbreviation "mA" denotes the International System unit for electrical current known as the milliampere. One milliampere is equal to one-thousandth of an ampere. The unit is named for the 18th and 19th century French physicist Andre-Marie Ampere, who studied electromagnetism.

    Full Answer >
    Filed Under:
  • Q:

    How does softball relate to physics?

    A:

    According to the University of Sydney, softball is related to physics through hitting and pitching. The University notes that many players are aware of certain physics-related phenomena in softball but do not know much about the physics-related concepts they are using in almost every game.

    Full Answer >
    Filed Under:
  • Q:

    How is physics related to technology?

    A:

    Every kind of technology makes use of principles articulated by the scientific discipline of physics. Even very simple technology, such as the wheel or the lever, have actions that can be described in terms of basic forces and matter interactions.

    Full Answer >
    Filed Under:

Explore