# CTE Resource Center - Verso - Electronics Systems I Task 1258221487

CTE Resource Center - Verso

Virginia’s CTE Resource Center

Compute current, voltage, resistance, and power, using Ohm's law and Watt's law.

Definition

Computation requires an understanding of the mathematical and scientific concepts related to Watt’s law and power and should include
  • defining the terms of the equation for Ohm's law and Watt's law:
    • Ohm's law: V = IR; I = V/R; R = V/I
    • Watt’s law: P = VI; I = P/V; V = P/I
  • describing the basic scientific principle that
    • if resistance to current flow stays the same and the voltage pressure increases, the current flow rate must also increase.

Process/Skill Questions

  • What is Watt’s law?
  • What are the mathematical relationships of Watt’s law?
  • How can Watt’s law be used to evaluate circuit characteristics?
  • What are the units of measurement involved in Watt’s law, and what is their relationship to one another?
  • How do Ohm’s law and Watt’s law relate to each other in the analysis of electronic circuits?

Related Standards of Learning

Mathematics

A.4

The student will solve
  1. multistep linear and quadratic equations in one variables algebraically;
  2. quadratic equations in one variables algebraically;
  3. literal equations for a specified variable;
  4. systems of two linear equations in two variables algebraically and graphically; and
  5. practical problems involving equations and systems of equations.

A.6

The student will
  1. determine the slope of a line when given an equation of the line, the graph of the line, or two points on the line;
  2. write the equation of a line when given the graph of the line, two points on the line, or the slope and a point on the line; and
  3. graph linear equations in two variables.

A.8

The student, given a situation in a real-world context, will analyze a relation to determine whether a direct or inverse variation exists, and represent a direct variation algebraically and graphically and an inverse variation algebraically.

AII.3

The student will solve
  1. absolute value linear equations and inequalities;
  2. quadratic equations over the set of complex numbers;
  3. equations containing rational algebraic expressions; and
  4. equations containing radical expressions.

AII.10

The student will represent, create, and solve problems, including practical problems, involving inverse variation, joint variation, and a combination of direct and inverse variations.

Science

PH.11

The student will investigate and understand how to diagram, construct, and analyze basic electrical circuits and explain the function of various circuit components. Key concepts include
  1. Ohm’s law;
  2. series, parallel, and combined circuits;
  3. electrical power; and
  4. alternating and direct currents.

Other Related Standards

ITEEA National Standards

1. The Characteristics and Scope of Technology

 

10. The Role of Troubleshooting, Research and Development, Invention and Innovation, and Experimentation in Problem Solving

 

11. Apply the Design Processes

 

12. Use and Maintain Technological Products and Systems

  

13. Assess the Impact of Products and Systems

 

16. Energy and Power Technologies

 

2. The Core Concepts of Technology

 

3. The Relationships Among Technologies and the Connections Between Technology and Other Fields

 

6. The Role of Society in the Development and Use of Technology

 

7. The Influence of Technology on History

 

8. The Attributes of Design

 

9. Engineering Design

 

TSA Competitive Events

Principles of Technology (Virginia only)

 

System Control Technology

 

Technology Bowl