conductor of radius r, length and resistivity p has resistance R. It is melted down and formed nto a new conductor, also cylindrical, with one 3rd the length of the original conductor. The esistance of the new conductor is elect one: a. 9R b. R. O d. 3R /- 1/9

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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.