Wire Radius (mm) Wire Radius (m) Cross-sectional Area, pr2 (m2) 1/A (m-2) Resistance (Ohms) .9 9x10-4 2.54x10-6 3.9x105 36.54 mΩ .15 1.5x10­-4 7.07x10-8 1.41x107 1200 mΩ .86 8.6x10-4 2.32x10-6 4.3x105 39.76 mΩ .65 6.5x10-4 1.33x10-6 7.5x105 68.91 mΩ .6 6x10-4 1.13x10-6 8.8x105 81.66 mΩ Given the table, what is the Slope of Resistance vs. 1/A? The wire length is 5.8m.

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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.