Physics
Physics, 09.10.2019 16:30, artursino

Atemperature-stable resistor is made by connecting a resistor made of silicon in series with one made of iron. if the required total resistance is 1300 capital omega in a wide temperature range around 20degrees celsius, what should be the resistances of the two resistors? the temperature coefficients of the resistivities for iron and silicon are: alphairon = 5.0times 10-3 k-1 alphasilicon = -75times 10-3 k-1 resistance of the silicon resistor at 20degrees celsius:

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