Potential Difference Between Two Points In an Electric Field - Current Density & Resistivity

Описание: This physics video tutorial explains how to calculate the potential difference between two points in an electric field on a metallic conductor. It also explains how to calculate the current density given the electric current and the diameter of the material. The current density is equal to the current divided by the cross sectional area. The electric field is equal to the resistivity of the material multiplied by the current density. The potential difference is the product of the electric field and the distance between the two points. This video contains plenty of examples and practice problems.

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Ohm's Law Problems:
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Resistors In Series:
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Resistors In Parallel:
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