If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density
Answers
So if area increases, flux density decreases.
Answer:
Explanation:
According to Faraday's law of electromagnetic induction, the magnetic flux through a closed surface is directly proportional to the total number of magnetic field lines passing through that surface. Magnetic flux density, also known as magnetic induction or simply magnetic field, is a measure of the strength of the magnetic field and is defined as the magnetic flux per unit area.
If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density will decrease. This is because the total number of magnetic field lines passing through the surface remains constant, but the area over which they are distributed has increased. Thus, the same amount of flux is now spread over a larger area, resulting in a lower flux density.
Conversely, if the cross-sectional area of a magnetic field decreases while the flux remains the same, the flux density will increase. This is because the same amount of flux is now concentrated over a smaller area, resulting in a higher flux density.
In summary, the relationship between flux, area, and flux density is direct and proportional. When the flux remains the same and the area increases, the flux density decreases, and when the area decreases, the flux density increases.
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