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Samuelriesterer
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More specifically, what happens and why when a magnet is brought close to a nonferrous charged object.
rootone said:This me wonder about what it is that is being measured with an MRI scan though.
According to Faraday's law of induction, a changing magnetic field can induce an electric field. This is because the changing magnetic field produces a changing flux, which in turn creates an electric field.
When an electrical current flows through a wire, it creates a circular magnetic field around the wire. The strength of the magnetic field is directly proportional to the amount of current flowing through the wire.
The strength of a magnetic field does not directly affect the strength of an electrical field. However, a changing magnetic field can induce an electrical field, and the strength of the induced electric field is proportional to the rate of change of the magnetic field.
The direction of a magnetic field does not directly affect the direction of an electrical field. However, the direction of the induced electric field is perpendicular to both the direction of the changing magnetic field and the direction of the flow of current.
A magnetic field can alter the motion of charged particles in an electrical field by exerting a force on the particles. This force is perpendicular to both the magnetic field and the velocity of the particles, causing them to change direction or spiral around the magnetic field lines.