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Inductance of a Toroid

hyperphysics.phy-astr.gsu.edu · 205 words · saved by 1 readers

Finding the magnetic field inside a toroid is a good example of the power of Ampere's law. The current enclosed by the dashed line is just the number of loops times the current in each loop. Amperes law then gives the magnetic field at the centerline of the toroid as

Approximate Inductance of a Toroid Finding the magnetic field inside a toroid is a good example of the power of Ampere's law. The current enclosed by the dashed line is just the number of loops times the current in each loop. Amperes law then gives the magnetic field at the centerline of the toroid as The inductance can be calculated in a manner similar to that for any coil of wire. The application of Faraday's law to calculate the voltage induced in the toroid is of the form This can be used with the magnetic field expression above to obtain an expression for the inductance. This is a…

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