Electricity and Magnetism by Teruo Matsushita

Author:Teruo Matsushita
Language: eng
Format: epub, pdf
Publisher: Springer Japan, Tokyo

(8.14)

where is the planar current in a unit width. The magnetic flux between the two plates is

(8.15)

Hence, we obtain the self-inductance as

(8.16)

The magnetic flux density produced by parallel planar currents corresponds to the electric field of strength produced by planar electric charges in a parallel-plate capacitor (see Fig. 8.8c).

The coil used to produce a uniform magnetic flux density is a solenoid coil. For example, when we apply current I to a long solenoid coil with a winding of n turns in a unit length, the interior magnetic flux density is uniform with the value

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