The table reports resistivities of various materials at 20.0°C. We can identify the metal that the wire is made of by calculating the metal's resistivity and comparing this value to the resistivities in the table. From the equation R = pL/A that relates resistance R to length L, cross-sectional area A of diameter d, and resistivity p, we have P = RA R(лd²/4) L L ( = 0.25 ✓22) T (2 Ω 50 m m)² x 10-3 m 1.0 X Your response differs from the correct answer by more than 10%. Double check your calculations. x 107 Comparing this resistivity to the values in the table, we conclude that the material contained in the wire is silver

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.