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Ch 58: TExES Physics/Math 7-12: Current Circuits

About This Chapter

As part of your preparation for the TExES Physics/Mathematics 7-12 test, watch these lesson videos on electric current, electric circuits and electrical resistance.

TExES Physics/Math 7-12: Current Circuits - Chapter Summary

In preparation for the TExES Physics/Mathematics 7-12 exam be sure to review the nature of electric current and how it is channeled through electrical circuits. If at any time you become confused about any of the topics in these videos ask our professional instructors any questions you may have so that you can master the material on:

  • Types of electric current
  • Electrical resistance
  • Components of electric circuits
  • Resistor-capacitor circuits
  • Pros and cons of alternating current

Further reinforce your understanding of the material by completing lesson worksheets, and quizzes. From the results of your lesson quizzes you can find any areas you could improve upon. Then efficiently improve your understanding of these subjects by returning to the lesson videos using video tags that take you directly to key points in the videos. Also, if you need an alternative way to review the material, read over the lesson transcripts that present the same information but in a written format.

6 Lessons in Chapter 58: TExES Physics/Math 7-12: Current Circuits
Test your knowledge with a 30-question chapter practice test
What is Electric Current? - Definition, Unit & Types

1. What is Electric Current? - Definition, Unit & Types

Like a river current is the flow of water molecules, electrical current is the flow of charged particles. In this lesson, we're going to explore what electrical current is, what causes it, and that, unlike a water current, electrical current doesn't always flow in one direction.

Electrical Resistance: Definition, Unit & Variables

2. Electrical Resistance: Definition, Unit & Variables

We'll take a shopping trip to the mall to learn how electrical resistance works and how it is affected by resistivity, conductor dimensions, and temperature. We'll also take a look at several common appliances that take advantage of resistance to function.

Types & Components of Electric Circuits

3. Types & Components of Electric Circuits

Learn about electrical components and types of circuits. By the end of this lesson, you'll be able to explain what components like bulbs, resistors, and capacitors do. You'll also be able to compare and contrast series vs. parallel circuits and DC vs. AC circuits.

Applying Kirchhoff's Rules: Examples & Problems

4. Applying Kirchhoff's Rules: Examples & Problems

Ohm's Law can be useful for analyzing simple circuits, but when circuits are more complex, as they often are, we can instead analyze the circuits using Kirchhoff's rules. Learn about Kirchhoff's rules in this lesson.

Resistor-Capacitor (RC) Circuits: Definition & Explanation

5. Resistor-Capacitor (RC) Circuits: Definition & Explanation

Resistor-capacitor (RC) circuits are everywhere because they are useful in our everyday lives. The current in these circuits varies with time, making them both practical and common in many types of electronic equipment.

Alternating Current: Definition, Advantages & Disadvantages

6. Alternating Current: Definition, Advantages & Disadvantages

Alternating current (AC) is easy to generate and use, with numerous advantages over direct current. In this lesson, we'll define AC, discuss its advantages and disadvantages, and provide a quiz.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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