Physics, 31.07.2019 17:10 meganaandrewsat
Atungsten wire has a radius of 0.080 mm and is heated from 20.0 to 1392 oc. the temperature coefficient of resistivity is α = 4.5 x 10-3 (co)-1. when 100 v is applied across the ends of the hot wire, a current of 1.5 a is produced. how long is the wire? neglect any effects due to thermal expansion of the wire.
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Atungsten wire has a radius of 0.080 mm and is heated from 20.0 to 1392 oc. the temperature coeffici...
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