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The four-terminal conductor and the Thomson bridge (1912)

Wenner, Frank · National Bureau of Standards · leaf 52

An illustration from The four-terminal conductor and the Thomson bridge, 1912, leaf 52
n need not be made to a high accuracy since the timeconstants to be compared are so small that we shall seldom beconcerned with more than two significant figures. The coil for the mutual inductance M necessarily changes the Therefore, to make -=- it is necessary to put inductance lv o u a coil of… … Fig. 12 negligibly small. If this coil is made in two sections, the changesin its inductance necessary for balancing the bridge may be madeby changing their relative position. If the auxiliary ratio coilshave very nearly equal time constants, the little adjustment nec-essary can be made by making…

Measurements and use of instruments · Electricity and magnetism · Condensed matter · Electronic structure, electrical, magnetic, and optical properties

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