Problem 1: Silver has a resistivity of 0.016 p-m at room temperature, a molar mass of 108 g/mol, and a density of 10.5 g/cma. A particular cylindrical silver wire has a length of 250 m and a diameter of l0.55 mm, and carries a. current of 0.025 A. a). What is the potential different AV between the two ends of the silver wire? b). Assuming one conducting electron per atom, how long (in days) would it take a conducting electron to traverse the entire wire? Problem 2: Incandescent light bulbs work by running electric currents through long, narrow wires called laments. The power dissipated by the resistance of the lament causes the lament to heat up, until it starts to glow, emitting light via a phenomenon called blackbody radiation. A typical 60 watt incandescent lament is made from tungsten, a conducting metal chosen for its extremely high melting point, and has a length of approximately 580 mm and a diameter of approximately 0.046 mm. a). The power rating of light bulb is calculated assuming the light bulb is connected to a 120 V rms EMF source (i.e., a typical US wall outlet). What is the resistance, R of a 60 watt light bulb? b). Using your answer to part a, estimate the resistivity of tungsten at the operating temperature of the light bulb. c). Based on what we learned in lecture, when the light bulb is rst turned on, should the resistance be larger or smaller than the resistance you found in part a? As a result, will the light bulb draw a larger or smaller current? d). Wall outlets in Europe are higher voltage, typically 220 V me. If a 60 watt bulb is plugged in to a European outlet, what is the power it will dissipate, presuming its resistance remains the same as you calculated in part a? e). Based on what you know about the resistance of metals, is the power you calculated in part d likely an underestimate or an overestimate of the actual power dissipated by the light bulb when plugged in to the European outlet