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词汇 Persistent current
分类 英语词汇 英语翻译词典
释义

Persistent current

英语百科

Persistent current

Persistent current schematic. The green arrow indicates the direction of static applied magnetic field B which allows a net current I (blue arrow) to flow and create a magnetization M (black arrow) by breaking the symmetry between clockwise and counterclockwise currents. The yellow dot represents an electron traversing the disordered material of the ring (green stars) without dissipation. A typical ring current is 1 nanoampere for a ring diameter of 0.6 micrometer at a temperature below 0.5 kelvin.[3]

Persistent current is a perpetual electric current, not requiring an external power source.

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