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Basic Electrical Concepts Resistor Color Code Practice Resistor Color Code Recognition Drills Abbreviations Representing Electrical Quantities How Current Requires Voltage Methods of Producing Electricity Resistor Color Code Description Voltage and Resistors What Is Current? What Is Electricity? Conductors, Insulators and Resistors Interpreting the Resistor Color Code Electrical Circuits/Meters Electrical Opens and Shorts Potentiometer Application Testing an On/Off Switch Variable Resistors Proper Meter Placement Schematic Diagram Symbols Electrical Switches & Pushbuttons Ammeter Circuit Connections Voltmeter Circuit Connections Ohmmeter Measurement Connections Wires Opens and Shorts Analog Ohmmeter Operation Analog Voltmeter Operation Analog Ammeter Operation The Three-Way Switching Circuit Finding the Common Connection of an SPDT Switch Ohm’s Law Watt's Law Assembling a Circuit from a Schematic Diagram Voltage, Resistance, and Current Relationships The Electrician's Wheel of Laws Quiz Ohm's Law: Current Ohm's Law: Power Ohm's Law: The Relationship of Voltage, Current, and Resistance Series Circuits Opens Affecting Current in a Series Circuit Total Resistance of a Series Circuit Voltage Sources in Series Shorts Affecting Current in a Series Circuit Total Power Calculations in a Series Circuit Voltage Drops in a Series Circuit Kirchhoff's Voltage Law Current in a Series Circuit Voltage Dividers Affects of a Rheostat in a Series Circuit Voltage Drops Parallel Circuits How Adding Parallel Branches Decreases Total Resistance How Adding Parallel Branches Increases Total Current Total Resistance in a DC Parallel Circuit Voltage Sources in Parallel Total Resistance in a Parallel Circuit Kirchhoff's Current Law - Parallel Circuits Measuring Current in a Parallel Circuit Circuit Protection Opens and Shorts in a Parallel Circuit DC Current Flow Through a Parallel Circuit Series/Parallel Circuits Power Calculations in a Series/Parallel Circuit Series-Parallel Resistance -- Practice Problems Affects of a Rheostat in a Series-Parallel Circuit Wattmeters Kirchhoff's Current Law Series/Parallel Applications Wheatstone Bridge Wheatstone Bridge Application Series-Parallel DC Circuits Analysis Magnetism The Solenoid The Relay Magnetic Hysteresis Electromagnets The Magnetic Circuit Magnetic Radio Waves How Metal Detectors Operate Magnetics AC Power Generation