Basic Electricity Course

Lesson 1 • Conductors, Insulators, and Semiconductors

Classifies materials by their ability to conduct electricity. Prepares students to select appropriate materials in circuit work.

Lesson 2 • Energy, Power, and the Watt

Introduces electrical power and energy calculations using voltage and current. Connects theory to real-world energy consumption.

Lesson 3 • Voltage, Current, and Resistance

Defines the three fundamental electrical quantities and their units. Links each quantity to measurable, observable phenomena.

Lesson 1 • Power Calculations Using Ohm's Law

Extends Ohm's Law to derive power formulas P = I²R and P = V²/R. Students calculate power dissipation without needing both V and I.

Lesson 2 • Scientific Notation and Metric Prefixes

Covers milli-, micro-, kilo-, and mega- prefixes used in electrical measurements. Enables accurate reading of component values and meter displays.

Lesson 3 • Ohm's Law Stated and Derived

Presents the mathematical relationship V = IR and its algebraic rearrangements. Forms the calculation backbone for all circuit analysis.

Lesson 1 • Series Circuit Characteristics

Defines series topology and its rules for current, voltage, and resistance. Establishes the foundation for Kirchhoff's Voltage Law application.

Lesson 2 • Voltage and Current Divider Rules

Introduces divider formulas as shortcuts for series and parallel analysis. Speeds up calculations in practical circuit design and troubleshooting.

Lesson 3 • Series-Parallel Combination Circuits

Teaches systematic reduction of complex networks to equivalent resistances. Applies series and parallel rules together in multi-step analysis.

Lesson 4 • Kirchhoff's Voltage and Current Laws

States KVL and KCL formally and applies them to multi-loop circuits. Provides a universal analysis method beyond simple series-parallel reduction.

Lesson 1 • Lockout and Tagout Procedures

Covers energy isolation, lockout device application, and verification steps. Ensures equipment is de-energized before any maintenance work begins.

Lesson 2 • Personal Protective Equipment for Electrical Work

Specifies PPE categories matched to voltage levels and arc flash hazard. Students select correct gloves, face shields, and flame-resistant clothing.

Lesson 3 • Effects of Electric Current on the Body

Quantifies physiological effects of current at milliampere thresholds. Motivates all subsequent safety rules with evidence-based risk data.

Lesson 4 • Grounding, Bonding, and Ground Fault Protection

Explains protective grounding, equipotential bonding, and GFCI operation. Reduces shock risk from ground faults and stray voltage.

Lesson 1 • Measuring Voltage and Current Safely

Explains correct probe placement for voltmeter and ammeter connections. Prevents instrument damage and personal injury from incorrect hookup.

Lesson 2 • Clamp Meters and Power Meters

Introduces non-contact current measurement and wattmeter use. Extends measurement capability to high-current and power-monitoring applications.

Lesson 3 • Measuring Resistance and Continuity

Teaches ohmmeter use with power removed and continuity testing procedures. Supports fault isolation and component verification tasks.

Lesson 4 • Measurement Accuracy and Error Sources

Identifies loading error, lead resistance, and calibration drift as accuracy threats. Teaches students to evaluate and report measurement uncertainty.

Lesson 1 • Magnetic Fields and Flux

Defines magnetic flux, flux density, and field lines around permanent magnets. Provides the physical basis for understanding electromagnetic devices.

Lesson 2 • DC Motors and Generators

Describes how electromagnetic force produces rotation and how rotation produces EMF. Links motor and generator action to practical equipment in the field.

Lesson 3 • Electromagnetism and the Solenoid

Shows how current-carrying conductors produce magnetic fields. Introduces the solenoid as a controllable electromagnet used in relays and actuators.

Lesson 4 • Transformers: Principles and Ratios

Explains mutual induction and the turns-ratio relationship for voltage and current. Students calculate primary and secondary values for step-up and step-down transformers.

Lesson 1 • Capacitors in AC Circuits

Explains capacitive reactance and the 90-degree current-leads-voltage relationship. Connects capacitor behavior to filtering and power factor correction.

Lesson 2 • Phase Relationships in AC Circuits

Introduces phase angle and the concept of leading and lagging waveforms. Prepares students for capacitive and inductive circuit behavior.

Lesson 3 • Inductors in AC Circuits

Explains inductive reactance and the 90-degree voltage-leads-current relationship. Connects inductor behavior to motors, transformers, and filters.

Lesson 4 • AC Waveform Characteristics

Defines sinusoidal waveform parameters including amplitude, period, and frequency. Establishes the vocabulary for all AC circuit analysis.

Lesson 1 • Circuit Breakers and Their Operation

Describes thermal-magnetic and electronic trip mechanisms in circuit breakers. Students distinguish between overload and short-circuit trip functions.

Lesson 2 • Grounding and Bonding in Wiring Systems

Applies grounding and bonding requirements to branch circuits and panels. Ensures fault current returns safely to the source for protective device operation.

Lesson 3 • Wiring Methods and Raceways

Surveys conduit types, cable assemblies, and open wiring methods. Students match wiring methods to environmental and installation requirements.

Lesson 4 • Fuses: Types and Operation

Explains fuse construction, time-current characteristics, and replacement rules. Prevents equipment damage and fire from sustained overcurrent.