Sentence Examples


  • His data for the thermal conductivity of various metals were for long the most trustworthy at the disposal of physicists, and his determination of the ohm in terms of the specific resistance of mercury showed remarkable skill in quantitative research.
  • The ammeter to be calibrated is placed in series with a suitable low resistance which may be �i ohm, �oi ohm, �ooi ohm or more as the case may be.
  • In Germany the work of Martin Ohm (System der Mathematik, 1822) marks a step forward.
  • Ultimately the discrepancy was traced to an error which, not by Joule's fault, vitiated the determination by the electrical method, for it was found that the standard ohm, as actually defined by the British Association committee and as used by him, was slightly smaller than was intended; when the necessary corrections were made the results of the two methods were almost precisely congruent, and thus the figure 772-55 was vindicated.
  • An essential accompaniment therefore of the potentiometer is a series of standard low resistances, say of o 1, o oi, o ooi ohm, and also a series of higher resistances divided into known fractions.

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