A laboratory course in experimental physics (1896)
Loudon, W. J. (William James), McLennan, John Cunningham, joint author · New York and London, Macmillan and Co. · leaf 256
Fig. 36. perature at which the standard is accurate is usually inscribedon it, and having been thoroughly tested, the coil is accom-panied by a statement shewing its variations, with changes of … Fig. 37. temperature. In order that these may be small the wire isusually made from an alloy of platinum and silver. The resistance of a conductor is determined by comparison 242 EXPERIMENTAL PHYSICS. with others whose resistances are known. These which are ac-curate copies of standards are…
Physics
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