单词 | null-current circuit |
释义 | null-current circuit [`nǝl ¦kǝ·rǝnt `sǝr·kǝt] ELECTRONICS A circuit used to measure current, in which the unknown current is opposed by a current resulting from applying a voltage controlled by a slide wire across a series resistor, and the slide wire is continuously adjusted so that the resulting current, as measured by a direct- current detector amplifier, is equal to zero. |
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