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How to Use Ohm's Law for your electrical needs

May 30, 2008 05:05 PM

Illustration and information about the Coulomb, the unit of electric charge, and Coulomb's Law.

The first video introduces the basic electrical quantities of charge, current, voltage, and resistance. The concept of quantities and units is explained. The units of Coulombs, Volts, Amperes, and Ohms are described. The three basic formulas of Ohm's Law (E=IR, I=E/R and R=E/I) are also introduced.

The second video demonstrates the use of Ohm's Law to calculate current, voltage, and resistance in a simple circuit.

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