Originally: an instrument for ascertaining the presence of an electric charge on an object, and giving an indication of its magnitude; = electroscope…
单词 | θ78011 |
释义 | the world > matter > physics > electromagnetic radiation > electricity > [noun] > measurement of > instrument for (8) electrometer1749 Originally: an instrument for ascertaining the presence of an electric charge on an object, and giving an indication of its magnitude; = electroscope… electronometer1837 = electrometer, n. electronome1872 = electrometer, n. binant electrometer1908 A half of a circle or circular body; binant electrometer, an electrometer in which the index moves through half a circle. ratiometer1925 Any of various instruments for measuring the ratio or quotient of two physical quantities. Subcategories:— part of (3) |
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