i) What is the general expression for the electrical resistivity of a metallic material with eutectic...

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Electrical Engineering

i) What is the general expression for the electrical resistivityof a metallic material with eutectic composition such as the Pb-Snsolder material? Identify all the parameters in the expression.
ii) Based on your knowledge of single phased and multi-phasedmaterials, explain how you can make material choice for a devicebased on resistive heating such as stove heating coils. Indicatehow the enhancements of the heating efficiency can be achieved insingle phased and multi-phased materials.

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i we investigated the electrical resistivity as a function of temperature of the Sn07Cu solder alloy with the addition of Fe and Bi The electrical resistivity were characterized by the fourpoint probe method Apparent change in electrical resistivity was witnessed by the addition of both Fe and Bi At room temperature the electrical resistivity was found to be increased with the addition of Fe as well as a further increase with the addition of Bi Fe and Bi modified Sn07Cu alloys also experienced the similar increasing trend when they were subjected to See Answer

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