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Discover the principles of Faraday's Law with this interactive simulation by PhET.
This article describes the inductance formula and how to calculate inductance. When electric current flows through the inductor, a magnetic field is produced around it. The strength of the magnetic field depends on the inductance, current, and number of turns in a coil.
The inductance is $$L = \frac{\lambda}{I} = \frac{N\Phi}{I} $$ where \$\lambda\$ is the flux linkage - the magnetic flux links N turns.
5 lis 2020 · Faraday’s law states that the EMF induced by a change in magnetic flux depends on the change in flux Δ, time Δt, and number of turns of coils. Faraday’s law of induction can be used to calculate the motional EMF when a change in magnetic flux is caused by a moving element in a system.
Faraday’s law of induction may be stated as follows: The induced emf ε in a coil is proportional to the negative of the rate of change of magnetic flux: B d dt ε Φ =− (10.1.3) For a coil that consists of N loops, the total induced emf would be N times as large: B d N dt ε Φ =− (10.1.4) 10-3
The equation below expresses Faraday's law in mathematical form. ΔΦ B /∆t (through a fixed area) = -emf In this studio session you will use a simulation to explore consequences of Faraday's law, and another simulation to explore the inductance of circuit elements.
Calculate the self-inductance of a toroid which consists of N turns and has a rectangular cross section, with inner radius a , outer radius b and height h , as shown in Figure 11.2.3(a).
