Course 1, Version 1 and 2: Upon successful completion of the course, students will be able to: explain basic principles of electricity and perform electrical circuit calculations using series, parallel, and series-parallel DC circuits. Course 2, Version 1: Students will be able to: perform basic calculations of capacitive and inductive reactance, and impedance and apply Ohm's law to AC circuits. Course 1, Version 3: Same as Version 1 and 2, in addition; students will be able to: describe basic concepts of atoms, electrical charge, electrons, current, voltage, and resistance; describe the relationship of voltage, current, and resistance in a series-parallel circuit; describe the relationship of work to electrical power; describe the construction and basic characteristics of lead-acid storage batteries; describe the factors that determine the resistance of a conductor; describe the use and application of wire size tables; describe the principles of voltage drop across conductors; and describe the properties of magnets and the characteristics of electronagnetism and electromotive force and the principles of DC motors. Course 2, Version 2: Same as Version 1, in addition; students will be able to: demonstrate a basic understanding of the characteristics of alternating-current circuits and the devices contained in the circuits; describe the methods for generation of alternating-current and related terminology; describe self-induction and mutual induction; describe inductive reactance and the relationship between voltage and current in inductive circuits; use vectors to show the voltage and current relationship in an AC series circuit; describe the current-voltage relationship in an AC parallel circuit containing resistance and capacitance; and describe the concepts associated with power, power factor, and power correction factor in AC circuits. Course 1, Version 3, Course 2, Version 1: Same as Course 1, Version 2 and Course 2. Course 1, Version 4, Course 2, Version 4: Same as Course 1, Version 2, Course 2, Version 1.