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This physics video tutorial provides a basic introduction into the difference between alternating current vs direct current. It explains how to calculate the rms voltage and rms current in an AC circuit as well as the peak voltage and peak current. In addition, it explains how to calculate the average power in an AC circuit. This video contains plenty of examples and practice problems.

Electric Current In Circuits:


The Electric Battery:


Ohm's Law Problems:


Resistance and Resistivity:


Resistor Color Code:


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Internal Resistance of a Battery:


Electromotive Force of a Battery:


Drift Velocity and Current Density:


Potential Difference Between Two Points:


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Schematic Diagrams & Symbols:


Open, Closed, and Short Circuits:


Resistors In Series:


Resistors In Parallel:


Physics PDF Worksheets:

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