Lesson 1 - Introduction to Electricity
Structure of matter and atoms; Electron shells; Transferring charges; Electrical forces and terms
Learning Objectives:– Describe the structure of an atom.
– Tell the difference between a compound and an element.
– Explain how electrical forces cause objects to attract or repel other objects.
– Describe electron flow.
– State the definition of a cell.
Lesson 2 - Static Electricity
Nature, effects, generation, and elimination of static electricity; Effects of humidity; Static charges on liquids, vehicles, dusts, process machinery
Learning Objectives:– List the conditions that must exist in order for static electricity to cause ignition.
– List the common causes of static electricity in an industrial plant.
– State the definition of bonding.
– Explain how liquid affects a static charge.
– State the definition of grounding.
– Explain the relationship between humidity and static electricity.
Lesson 3 - Current Electricity
Electric current and energy; Electricity from chemical action; Primary and secondary cells; Batteries; Electricity from electromagnetism
Learning Objectives:– List the main methods of producing potential difference.
– State the main difference between a primary cell and a secondary cell.
– Explain how to connect cells in parallel and in series.
– Describe how a photoelectric device works.
– Identify potential hazards when recharging batteries.
Lesson 4 - Magnetism
Magnetic forces; Theory of magnetism; Magnetic fields; Left-hand rules; Electromagnets; Industrial uses of magnets
Learning Objectives:– State the most basic law of magnetic force.
– Describe how magnetic force operates.
– Describe the left-hand rule for magnetic field direction.
– Describe an electromagnet.
– Explain how to use lifting magnets, magnetic pulleys, and magnetic clocks.
Lesson 5 - Current, Resistance, and Potential Difference
Current, Resistance, and Potential Difference - Electric current, resistance, and potential difference; Ohm's Law; Resistance and voltage drop; Electrical measurement
Learning Objectives:– State the characteristics of an electrical conductor and an electrical insulator.
– State the definition of electric current.
– Explain the relationship of potential difference to the flow of electric current.
– State the definition of Ohm's Law.
– Identify the purpose and parts of an ammeter.
Lesson 6 - Electrical Components
Resistors; Color code and power rating; Capacitors; Connecting capacitors; Induction; Inductors; Solenoids and relays
Learning Objectives:– Identify symbols for resistors, capacitors, and relays in an electric circuit diagram.
– Explain the operating principles of resistors, capacitors, and inductors.
– State the meaning of each band in the resistor color-code system.
– List the factors to consider when choosing a resistor.
– Explain how to connect capacitors in parallel and in series.
Lesson 7 - Conductors
Sizes and classifications; Insulation; Protecting conductors; Flexible conduit; Conduit fill; Splicing conductors
Learning Objectives:– Explain the difference between a conductor and an insulator.
– Identify a bare conductor, a covered conductor, an insulated conductor, a stranded conductor, a cable, and a cord.
– State the definitions of insulation resistance and dielectric strength.
– Select the best tapes for insulating splices, restoring the outer protecting covering on a splice, and connecting motor leads.
– Explain how to make a pigtail splice and a fixture splice.
– State the purposes of cable protection.
Lesson 8 - DC Circuits
DC characteristics; Ohm's Law; Circuit power; Series, parallel, series-parallel, open, and short circuits
Learning Objectives:– State the difference between ac and dc.
– Solve for R, E, I, and P in a simple electrical problem.
– Solve for potential difference, current, and resistance in a series and parallel circuit.
Lesson 9 - AC Circuits
Advantages of AC; Generating alternating current; Resistance, inductance, capacitance, current, and power in AC circuits
Learning Objectives:– Explain the importance of the transformer in ac electricity.
– Explain what a complete cycle of ac consists of and how it is produced.
– State the definition of ac inductance.
– List the ways inductive reactance differs from resistance.
– Explain the difference between the terms in-phase and out-of-phase in an ac circuit.
Lesson 10 - Electronics
Electron motion in a vacuum tube; Cathodes; Vacuum-tube diode and triode; Semiconductors;Transistors; Microprocessors
Learning Objectives:– Name the parts of a vacuum tube, and describe the function of each part.
– Explain the difference between p-type semiconductor materials and n-type semiconductor material.
– List the parts of a transistor.
– State the definition of an integrated circuit.