124 Current and ResistanceTherefore1200100+′° =−°α..CCafwhich simplifies to′ =00.C.From this, the temperature coefficient, based on a reference temperature of 0°C, may be computedfor any material. For example, using this, Table 27.1 becomes at 0 C°:MaterialTemp Coefficients at 0°CSilver41 103.×°−CCopper42 103.−CGold36 103.−CAluminum3.−CTungsten49 103.−CIron56 103.−CPlatinum425 103.−CLead3.−CNichrome04 103.−CCarbon−×°−05 103Germanium°−24 103CSilicon°−30 103CP27.68(a)A thin cylindrical shell of radius r, thickness dr, and length
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .