When an electric current flows through a conductor, it generates a magnetic field around it. The primary contributors to magnetic flux density are current-carrying conductors and magnetic materials. Magnetic flux density, often denoted as B, is produced by the alignment and motion of electric charges, typically electrons, within a material. Thus, by substituting our data into the above formula we haveį = 27.712N How is Magnetic Flux Density Produced? Calculate the force if it is lying in a direction at 60 0 to the magnetic field.ĭata: We retrieve our data from the above question ![]() The magnetic flux density of a 10m long stiff wire carrying a current of 4A is 0.8T. What is Magnetism How to Calculate Magnetic Flux Density Problem The formula for magnetic force isįor force carrying conductors in a magnetic field, we have Magnetic force (F): Whenever a charge is moving in a magnetic field, it experiences a force which is also called magnetic force. Below is an image of its definition and formula: Where: B = Magnetic flux density (tesla, T), Φ = Magnetic flux (weber, Wb), A = Cross-sectional area (square meters, m²).Īfter cross-multiplying the equation, we will have magnetic flux density equation as:Īs i mentioned earlier, we can use other si units like wb/m 2, Tesla(T), and gauss to measure magnetic flux density. Therefore, we can write the mathematical expression for magnetic flux density as: Magnetic field (B) = Magnetic flux (Φ) / Area (A) On the other hand, the magnetic field is the region in which magnetic forces act on magnetic materials or moving electric charges. Additionally, we represent it by using the symbol Φ (phi). Magnetic flux is a measure of the total magnetic field passing through a given surface. Magnetic Field Formula Understanding Magnetic Flux and Magnetic Fieldīefore I explain what magnetic flux density is, let me briefly touch upon the concepts of magnetic flux and magnetic field. It is a bit like measuring the “power” of the magnetic effect. So, when we talk about magnetic flux density in teslas, we are talking about how strong a magnetic field is. If you have something that measures 0.5 teslas, it means the magnetic push is not as strong – like a weaker magnet. One tesla is quite strong, like the pull of a strong magnet. Teslas are the units we use to measure this push. However, if you use a weaker magnet, the push on the metal would be weaker, indicating a lower magnetic flux density. If you put a piece of metal close to it, the metal might feel a strong push, showing a high magnetic flux density. The other units we use to measure magnetic flux density are wb/m 2, Tesla(T), and gauss. It is like a “push” that magnets or electric currents create. The magnetic flux density, measured in teslas (T), is a way we understand the strength of a magnetic field. Video: Magnetic Flux Density Formula Magnetic Flux Density Unit We use B as a symbol of magnetic flux density. The unit of magnetic flux density is the tesla (T) in the International System of Units (SI). It is a vector quantity, meaning it has both magnitude and direction. The Magnetic flux density formula is B = Φ / A. Additionally, Magnetic flux density refers to the amount of magnetic flux per unit area in a magnetic field.
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