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1. Silver has a resistivity of 1.62×10^?8 ?m, and a density of 1.05×10^4 kg/m3.

(a) What is the volume of 7.50 g of silver?

(b) You wish to fashion the 7.50 g of silver into a cylinder of length L and cross sectional area A so that the resistance between the ends of the cylinder is 3.50 ?. What is A?

(c) What is L? 2.At 20.0 °C, a mainly silicon resistor has a resistance of 585 ?, and a tungsten resistor has a resistance of 752 ?. At this temperature, the silicon resistor has a temperature coefficient of resistivity of ?0.070 °C^?1 and the tungsten resistor has a coefficient of 0.0050 °C^?

1. At what temperature will their resistances be equal?

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