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coki2000
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Hi,
Why the magnetic field's formula is B=k2i/r.Where does come from?Please prove to me.Thanks.
Why the magnetic field's formula is B=k2i/r.Where does come from?Please prove to me.Thanks.
Last edited:
coki2000 said:Hi,
Why the magnetic field's formula is B=k2i/r.Where does come from?Please prove to me.Thanks.
A magnetic field is a region in space where a magnetic force can be exerted on a charged particle or a magnetic material. It is created by the movement of electrically charged particles, such as electrons, and is characterized by both strength and direction.
A magnetic field is formulated using the mathematical concept of vector fields. This involves using equations to describe the strength and direction of the field at any given point in space, based on the properties of the sources of the field, such as electric currents or magnetic materials.
The units of measurement for a magnetic field are typically in units of tesla (T) or gauss (G). These units represent the strength of the field, with 1 T equal to 10,000 G. Another commonly used unit is the oersted (Oe), which is used to measure the intensity of magnetization in a material.
A magnetic field and an electric field are both types of electromagnetic fields, but they have different characteristics. A magnetic field is created by moving electrically charged particles, while an electric field is created by stationary electric charges. Additionally, a magnetic field is a vector quantity, meaning it has both magnitude and direction, while an electric field is a scalar quantity, meaning it only has magnitude.
The Earth's magnetic field is generated by the movement of liquid iron in its outer core. This magnetic field acts as a shield, protecting the Earth's surface from the harmful effects of the solar wind, which is a stream of charged particles from the Sun. The magnetic field deflects most of these particles, preventing them from reaching the Earth's surface and causing damage to our atmosphere and technology.