Two wires made of different materials have the same uniform current density. Which of the following statements is true? Group of answer choices They carry the same current only if the electric field in them are the same. They carry the same current only if the potential differences across them are the same. They carry the same current only if their lengths are the same. They carry the same current if both their lengths and cross-sectional area are the same. They carry the same current only if their cross-sectional areas are the

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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.