Ohms Law Made Easy for DC Series Circuits

This Lesson Defines and Illustrates some of the Electrical Terms that can help Improve Your Understanding of the Course Material.

One Formula Expressed Three different ways Defines the Relationship Between Voltage, Current and Resistance in an Electrical Circuit.

If Voltage Increases and Resistance Stays the Same, then Current Will Increase. If Voltage stays the same, and Resistance Increases, the Current Will decrease.

Try a Few Ohm's Law Math Examples to get Comfortable with the Formulas.

This Lesson Reviews the Ohm's Law Math Practice Examples from Lesson Four.

In Series Circuits, Voltage values and Resistance values in different parts of the Circuit May Be Different. This lesson explains.

A Brief Description of each of the Four Series Rules is Discussed in this Video. More Detail for Each Rule will Follow in Upcoming Videos.

Current Remains Constant throughout the Circuit. Series Circuit Rule Number One is Explained in this Lesson.

The Total Circuit Resistance is the Sum of All Resistance in the Circuit. Rule Number Two is Explained in this Lesson.

The Sum of All Voltage Drops is Equal to the Source Voltage. Series Rule Three is explained in this Lesson.

The Voltage Drop Across Each Resistor will Differ Depending on the Value of the Resistor. Welcome to Series Circuit Rule Four.

It's Time to Put it all together and Tackle Our First Series Circuit Math Example from Start to Finish. You will be Amazed how this Step by Step Approach will help Simplify the Process.

Sometimes an Analogy can make Understanding Electricity Easier. In this Lesson, the Actions of a Crowd at the Apple Store on New IPhone release day is related to Voltage Current and Resistance.

Try this Second Series Circuit Math Example. You can work on your own or watch the video as I walk you through the process.

The Power Formula works in a similar fashion as the Ohm's Law Formula. The Power Formula Triangle is Explained in this Lesson so you can calculate Power values for your Series Circuits.

Let's revisit Series Circuit Example 2 and Calculate all of the Power Values for the Different Parts of the Circuit.

Let's get some repetition on Series Circuit Math Examples. The next few lessons will give you the practice and tips you need to be able to Conquer Series Circuit Math.

Here is another example. You should be getting the hang of the process now.

It doesn't matter if there are two, three, or four loads or resistors. The process is the same. You are either doing Math or Using a Rule.

This Lesson shows why making All the Calculations for P, E, I and R will help keep you from being stuck. Math or Rule is the Secret Recipe.

If you have not tried one on your own yet without watching the video, Now is the Time to Test Your Skill.

This Video Demonstrates Ohm's Law in action. Two 50 Ohm Resistors are connected in Series to a Power Supply and a Volt Meter and an Ammeter are connected to the Circuit to show you the Readings.

What happens if the Resistor Values are Different. Yes, you guessed it... the Voltage Readings for each Resistor will be different.

Instead of Resistors, Let's use Bulbs in Series and see if the Rules Remain the Same.

Mega, Kilo Milli and Micro are Electrical Prefixes that many Meters use so they can display larger numbers on the Meter Display with fewer digits. For Ohm's Law Math to work, Remember You Must Convert all Readings of Voltage Current and Resistance to Volts, Amps and Ohms before plugging the values into the Ohm's Law Formulas.