Medical Term:
Wheatstone bridge
Pronunciation: wēt′stōn
Definition: an apparatus for measuring electrical resistance; four resistors are connected to form the four sides or “arms” of a square; a voltage is applied to one diagonal pair of connections, while the voltage between the other diagonal pair is measured, by a galvanometer; the bridge is “balanced” when the measured voltage is zero; then, the ratios of the two pairs of adjoining resistances must be identical.
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