A Comparison of the Formulas for the Calculation of the Inductance of Coils and Spirals Wound With Wire of Large Cross Section (Classic Reprint) - Tapa dura

Sinopsis

Excerpt from A Comparison of the Formulas for the Calculation of the Inductance of Coils and Spirals Wound With Wire of Large Cross Section

In a recent paper Doctor Snow (1) has derived a formula for the calculation of the inductance of a helical coil wound with wire of any desired cross Section, and has illustrated its use both for round wires and for wires of rectangular cross section. Snow's formula is very accurate, since no terms greater than those of the fourth power in the ratio of pitch of the winding to the radius of the winding form have been neglected. It also takes into account the helical shape of the winding, and thus allows for the effect of the axial component of the current in contributing to the magnetic field. This is true of no other existing formula, so that Snow's formula is able to serve as a standard in investigating the accuracy of other formulas for the inductance of a solenoid.

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