Mark Todd

Outline1 Series Circuits 2 Voltage Drops in a Series Circuit 3 Resistance in a Series Circuit 4 Calculating Series Circuit Values 5 Solving Circuits 6 Voltage Dividers 7 The General Voltage Divider Formula 8 Voltage Polarity 9 Using Ground as a Reference Key Terms Chassis ground General voltage divider formula Voltage divider Circuit breakers Ohm’s law Voltage drop Earth ground Resistance acids Voltage polarity Fuses Series circuit Ground point Series resistance

Outline1 Uses of Resistors 2 Fixed Resistors 3 Color Code 4 Standard Resistance Values of Fixed Resistors 5 Power Ratings 6 Variable Resistors 7 Schematic Symbols Key Terms Carbon film resistor Metal glaze resistor Short circuit Color code Multi-turn variable resistors Tolerance Composition carbon resistor Pot Variable resistor Fixed resistors Potentiometer Voltage divider Metal film resistors Rheostat Wire wound resistor

Electricity lesson plan 02 Outline1 The Coulomb 2The Amp 3 The Electron Theory 4 The Conventional Current Theory 5 Speed of Current 6 Basic Electrical Circuits 7 The Volt 8 The Ohm 9 The Watt 10 Other Measures of Power 11 Ohm’s Law 12 Metric Units Key Terms Amp Electron theory Ohm’s law British thermal unit (BTU) Grounding conductor Power Complete path Horsepower Resistance Conventional current flow Impedance Volt Theory Joule Watt Coulomb Neutral conductor Electromotive fo

Time Delay and Repeat function. This is the last in my series of Motor Control Labs, the next step is PLC labs ( Programable Logic Control ) This lab is kind of a fantasy lab, simulating a Traffic Litght timing circuit. This lab was designed for the advanced student and most of mine never made it this far but provides an activity for that student. I alway suggested that each wire should be numbered or labeled within one inch of each connection point so you do not have to search for the label

Stop Light Concept. This lab is kind of a fantasy lab, simulating a Traffic Litght timing circuit. This lab was designed for the advanced student and most of mine never made it this far but provides an activity for that student. I alway suggested that each wire should be numbered or labeled within one inch of each connection point so you do not have to search for the label when troubleshooting. This lab series follows the Relay Control series intended to introduce students to how relays work

This lab is kind of a fantasy lab, simulating a missle launch pad. This lab was designed for the advanced student and most of mine never made it this far but provides an activity for that student. I alway suggested that each wire should be numbered or labeled within one inch of each connection point so you do not have to search for the label when troubleshooting. This lab series follows the Relay Control series intended to introduce students to how relays work and the concept of ladder diagr

This Lab introduces the concept of normally clossed and normally open switches and the symbols . This lab series is intended to introduce students to how relays work and the concept of ladder diagrams in the electrical industrial area. This series is followed by my Motor Control Series and the two series go hand in hand. This is the area that most of my students actually get jobs that can become a career. I had my students build these on a piece of 1/2 inch plywood about 2 ft by 4 ft , a common

The second lab introduces the student to several new components, Control Fuse, Transformer Secondary, Contactor Coils and Overload Contacts along with Thermal overload sensors. This lab series follows the Relay Control series intended to introduce students to how relays work and the concept of ladder diagrams in the electrical industrial area. This series is followed by my Motor Control Series and the two series go hand in hand. The picture I included shows this series on a 4x8 ft Plywood base

This first lab introduces the student to several new 3 phase components, Disconnect Switches, Control Transformers, Overload Sensors, Auxilary Contacts, 3 Phase Motors both Delta and Wye, and Large Contactors. This lab series follows the Relay Control series intended to introduce students to how relays work and the concept of ladder diagrams in the electrical industrial area. This series is followed by my Motor Control Series and the two series go hand in hand. The picture I included shows this

This lab adds a load ( a light ) to the corntrol relay. I used the same residential SPST switches that the students are already familiar with and inrotoduced them to a basic octal based plug in relay and socket This lab series is intended to introduce students to how relays work and the concept of ladder diagrams in the electrical industrial area. This series is followed by my Motor Control Series and the two series go hand in hand. This is the area that most of my students actually get jobs

For this first lab I used the same residential SPST switches that the students are already familiar with and inrotoduced them to a basic octal based plug in relay and socket This lab series is intended to introduce students to how relays work and the concept of ladder diagrams in the electrical industrial area. This series is followed by my Motor Control Series and the two series go hand in hand. This is the area that most of my students actually get jobs that can become a career. I had my s

Outline1. Total Current 2. Voltage drop 3. Total Resistance 4. Formulas – Resistance total = (r1xr2)/(r1+r2) etc. 5. Reciprocal formula 6. Current dividers. 7. Voltage drop Key Terms Parallel circuit Equal Value formula Un-equal Value formula Number of Branches Product over Sum Method Reciprocal Formula Branch Current Total Current Reciprocal Formula

Outline 1 Analog Meters 11 DC-AC Clamp-on Ammeters 2 The Voltmeter 12 The Ohmmeter 2 The Voltmeter 12 The Ohmmeterters 4 Reading a Meter 14 Digital Meters 5 The Ammeter 15 The Low-Impedance Voltage Tester 6 Ammeter Shunts 16 The Oscilloscope 7 Multirange Ammeters 17 The Wattmeter 8 The Ayrton Shunt 18 Recording meters 9 AC Ammeters 19 Bridge Circuits 10 Cl

Outline 1 Combination Circuits 2 Solving Combination Circuits 3 Simplifying the Circuit 4 Other Electrical Theory’s Key Terms Combination circuit Norton’s theorem Superposition theorem Kirchhoff’s current law Parallel block Thevenin’s theorem Kirchhoff’s law Redraw Trace the current path Kirchhoff’s voltage law Reduce Node Simple parallel circuit

Outline1 Series Circuits 2 Voltage Drops in a Series Circuit 3 Resistance in a Series Circuit 4 Calculating Series Circuit Values 5 Solving Circuits 6 Voltage Dividers 7 The General Voltage Divider Formula 8 Voltage Polarity 9 Using Ground as a Reference Key Terms Chassis ground General voltage divider formula Voltage divider Circuit breakers Ohm’s law Voltage drop Earth ground Resistance acids Voltage polarity Fuses Series circuit Ground point Series resistance

Outline1 Uses of Resistors 2 Fixed Resistors 3 Color Code 4 Standard Resistance Values of Fixed Resistors 5 Power Ratings 6 Variable Resistors 7 Schematic Symbols Key Terms Carbon film resistor Metal glaze resistor Short circuit Color code Multi-turn variable resistors Tolerance Composition carbon resistor Pot Variable resistor Fixed resistors Potentiometer Voltage divider Metal film resistors Rheostat Wire wound resistor

Electricity Lesson Plan Week 01 Introduction 1 Early History of Electricity 2 Atoms 3 The Law of Charges 4 Centrifugal Force 5 Electron Orbits 6 Valence Electrons 7 Electron Flow 8 Insulators 9 Semiconductors 10 Molecules 11 Methods of Producing Electricity 12 Electrical Effects Key Terms Alternating current (AC) Electron Nucleus Atom Electron orbits Positive Atomic number Element Proton Attraction Insulators Repulsion Bidirectional Matter Semiconductors Centrifugal force Molecul

This advanced lab can be used as a real world assesment or for a Skills USA type of competition. It is intended to be used if you have access to actual walls made from 2x4 studs. This lab is advanced and can easily be used as a test. The page no longer tells the student how many conductors they will need between devices and they will need to draw it out or they will waste wire $$. The big change for this lab is the wire placement is left up to the student instead of being the placement being

This lab is very advanced and can easily be used as a test. The page no longer tells the student how many conductors they will need between devices and they will need to draw it out or they will waste wire $$. The big change for this lab is the addition of a GFCI, Ground Fault Circuit Interuptor, a light dimmer, and a photocell. Wire placement is left up to the student instead of the placement being guided. Instructor should look for wasted wire $$ when evaluating the outcome. The labs fol

This lab is advanced and can easily be used as a test. The page no longer tells the student how many conductors they will need between devices and they will need to draw it out or they will waste wire $$. The big change for this lab is the wire placement is left up to the student instead of being the placement being guided. Instructor should look for wasted wire $$ when evaluating the outcome. The labs following this one will introduce additioinal concepts. This makes the correct wiring dif