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# BUILDING ELECTRICAL CIRCUITS

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### BUILDING ELECTRICAL CIRCUITS

1. 1. Presentation by: www.sciencetutors.zoomshare.com Series And Parallel Circuits (Understanding The Basics Part 1) BUILDING ELECTRICAL CIRCUITS
2. 2. YOUR TARGET <ul><li>At end of this presentation you should know: </li></ul><ul><li>The symbols used to draw circuits </li></ul><ul><li>The basic differences between series and parallel circuits. </li></ul><ul><li>What happens to the current in series and parallel circuits. </li></ul><ul><li>The answers to basic question on circuits </li></ul>www.sciencetutors.zoomshare.com
3. 3. What are Electrical Circuits? <ul><li>Why is it important to learn about circuits? </li></ul>www.sciencetutors.zoomshare.com
4. 4. Why Do we Need Circuits? <ul><li>Remember electricity is a flow of electrons. A complete circuit is needed for electricity to flow </li></ul>
5. 5. CURRENT <ul><li>This is the amount of electricity flowing in a circuit. </li></ul><ul><li>Remember: the unit of current is Amps and the symbol is (A) </li></ul>www.sciencetutors.zoomshare.com
6. 6. TYPES OF CIRCUITS <ul><li>There are basically three types of circuit </li></ul><ul><li>Series, </li></ul><ul><li>Parallel, and </li></ul><ul><li>Series and Parallel circuit </li></ul>www.sciencetutors.zoomshare.com
7. 7. QUICK QUIZ <ul><li>What do these symbols show? </li></ul>1 2 3 4 5 6 www.sciencetutors.zoomshare.com
8. 8. Circuit Components www.sciencetutors.zoomshare.com
9. 9. Basic Circuit Symbols <ul><li>You should familiarize yourself with these symbols </li></ul>
10. 10. QUICK QUIZ <ul><li>Which of these circuits are parallel circuits and why? </li></ul>
11. 11. Is it Series Or Parallel Circuit? <ul><li>What is difference between parallel and series circuit? </li></ul>
12. 12. YOU SHOULD KNOW <ul><li>The series circuit is a single path for current to flow. </li></ul>Notice this, if part of the path for current is obstructed, the lights all go out like Christmas tree lights. www.sciencetutor.zoomshare.com
13. 13. Quick Quiz <ul><li>Which of these statements is correct </li></ul><ul><li>Series circuits are used for house lights </li></ul><ul><li>Parallel circuits are used for house lights </li></ul>
14. 14. Look At the Picture below Are the light bulbs in series or parallel?
15. 15. YOU SHOULD KNOW… <ul><li>In a parallel circuit the electricity has several paths that it can travel. </li></ul>
16. 16. QUICK QUIZ <ul><li>Series circuit is a single path for current to flow while parallel circuits have more than one path. </li></ul><ul><li>What are the disadvantages of connecting lights in series? </li></ul>www.sciencetutors.zoomshare.com
17. 17. QUICK QUIZ <ul><li>Which of the switches 1, 2 and 3 must be pressed to make the light bulb X in the circuit come on? </li></ul>www.sciencetutors.zoomshare.com
18. 18. You Should Know.. <ul><li>The main difference between a series circuit and a parallel circuit is in the way the components are connected. </li></ul>www.sciencetutors.zoomshare.com