Electronics S1W3: Learn to Calculate Watts, Volts and Amps
4.4 (85 ratings)
592 students enrolled

# Electronics S1W3: Learn to Calculate Watts, Volts and Amps

Learn Scientific Notation and how to use the Ohm's Law Wheel to solve basic electronics problems. (Semester 1, Week 3)
4.4 (85 ratings)
592 students enrolled
Created by Richard Vannoy II
Last updated 1/2015
English
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This course includes
• 2.5 hours on-demand video
• Access on mobile and TV
• Certificate of Completion
Training 5 or more people?

What you'll learn
• At the end of this course, students will be able to:
• Properly use the Ohm's Law Triangle.
• Understand the relationship between Watts and power.
• Be able to use the Ohm's Law Wheel to solve electronics problems whenever two of the four circuit measurements are known.
• Understand the difference between direct and inverse proportionality.
• Be able to convert very large and very small numbers into Scientific Notation.
• Correctly identify the number of significant digits in any number.
Requirements
• Students need no prerequisite knowledge for this course except basic math, including addition, subtraction, multiplication and division.
Description

You will become proficient in using the basic tools to perfore necessary calculations in the analysis of an electronic circuit. You will use given quantities of volts, amps, ohms or watts to calculate the other characteristics of simple electronic circuits. To do this, you will be taught the proper use of a tool called the Ohm's Law Wheel.

Additional topics include Watts and Power, Scientific Notation, Significant Digits and Rounding Off numbers. This will introduce you to how electronics professionals, hobbyists and engineers deal with the mathematics of electronics.

This course provides you with eleven video presentations lasting more than 2-1/2 hours.

Who this course is for:
• This course emphasizes the use of simple tools; the Ohm's Law Triangles and the Ohm's Law Wheel, to accurately calculate any of the characteristics such as voltage, current, resistance or power in an electrical or electronic circuit. Students, hobbyists and those thinking of a career in electronics will all find benefits in learning how electronic circuits work.
• Additional topics for this class include: Watts and Power, Scientific Notation, How to identify significant digits and how to correctly round off numbers.
Course content
Expand all 11 lectures 02:35:51
+ Using the Ohm's Law Triangle
1 lecture 12:17

After your previous introduction to Ohm's Law, it is now time to solve basic problems in electronics. The Ohm's Law Triangle is a simple tool used to help beginners remember the relationships between Voltage, Current and Resistance, and to use the triangle to solve an Ohm's Law problem when any two of the three are know.

Preview 12:17
+ Watts and Power
2 lectures 29:07

After Voltage, Current and Resistance, the last component of the Ohm's Law Wheel is Power. This video and the next video explains the basics of power, the fundamental formulas and how to integrate power into the Ohm's Law Wheel.

Watts and Power, Part 1
16:35

After Voltage, Current and Resistance, the last component of the Ohm's Law Wheel is Power. This video is Part 2, that explains the basics of power, the fundamental formulas and how to integrate power into the Ohm's Law Wheel.

Watts and Power, Part 2
12:32

This quiz reviews the Three Components of Ohm's Law, Voltage, Current and Resistance and the introduction to the power formulas used to compute power used.

Ohm's Law Triangle; Watts and Power
4 questions
+ Using the Ohm's Law Wheel
2 lectures 25:56

The Ohm's Law Wheel is a tool for electronics personnel to easily and quickly identify the correct formula or computation to use when solving for unknowns in any electrical or electronic circuit. This lecture explains the Wheel and how to use it properly.

Using the Ohm's Law Wheel, Part 1
12:19
Using the Ohm's Law Wheel, Part 2
13:37

The Ohm's Law Wheel is a useful tool to assist you in finding the correct formula to compute the correct answer in basic electronics problems. This quiz tests you ability to properly use the Ohm's Law Wheel.

Using the Ohm's Law Wheel
5 questions
+ Direct and Inverse Proportion
1 lecture 15:20

Ohm's Law states that "current in a circuit is directly proportional to the voltage and inversely proportional to the resistance. This lecture will create a graph for the student that clearly shows the proof of these two relationships, and shows the difference between direct and inverse proportion.

Direct vs. Inverse Proportion
15:20

Tests your knowlwdge of how direct and inverse proportion relates to Ohm's Law.

Direct and Inverse Proportion
3 questions
+ Scientific Notation
3 lectures 45:50

Scientific Notation is a standardized way of writing very large or very small numbers. This, and the next, video will show you how to accurately convert numbers from Standard form (e.g. 94,000,000,000) to Scientific Notation (e.g. 9.4E10) and the reverse: How to Convert Scientific Notation into Standard form.

Scientific Notation, Part 1
18:20

Scientific Notation is a standardized way of writing very large or very small numbers. This, and the next, video will show you how to accurately convert numbers from Standard form (e.g. 94,000,000,000) to Scientific Notation (e.g. 9.4E10) and the reverse: How to Convert Scientific Notation into Standard form.

Scientific Notation, Part 2
14:26

Scientific Notation is a standardized way of writing very large or very small numbers. This, and the two previous videos show you how to accurately convert numbers from Standard form (e.g. 94,000,000,000) to Scientific Notation (e.g. 9.4E10) and the reverse: How to Convert Scientific Notation into Standard form

Scientific Notation, Part 3
13:04

This quiz tests your ability to correctly convert very large and very small numbers from Standard Form to Scientific Notation, and also convert from Scientific Notation to Standard Form.

Scientific Notation
3 questions
+ Significant Digits and Rounding
2 lectures 27:21

Significant Digits are helpful tools for engineering calculations. This lecture shows you how to determine the number of significant digits in a number.

Significant Digits
15:12

Most adults are acquainted with round up or rounding down a number. "Rounding to Even" has specific rules, and is a common practice in all engineering professions.

Rounding to Even
12:09

This Quiz test your knowledge of the previous two lectures.

Significant Digits and Rounding to Even
5 questions