Basic Electricity and Electronics

Table of Contents

Chapter 1: Introduction to Electricity

Topics: 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.

Chapter 2: Static Electricity

Topics: 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.

Chapter 3: Current Electricity

Topics: 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.

Chapter 4: Magnetism

Topics: 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.

Chapter 5: Current, Resistance, and Potential Difference

Topics: 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.

Chapter 6: Electrical Components

Topics: 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.

Chapter 7: Conductors

Topics: 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.

Chapter 8: DC Circuits

Topics: 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.

Chapter 9: AC Circuits

Topics: 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.

Chapter 10: Electronics

Topics: 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.

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