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# E4 Introducing Electricity Part 2

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### E4 Introducing Electricity Part 2

1. 1. Introducing Electricity – Part 2
2. 2. Spot the differences
3. 3. Series Circuit <ul><li>A series circuit is one that connects an electrical source with its components one after another , forming one single loop . </li></ul>
4. 4. Series Circuit <ul><li>There is only one path for the current to flow through. </li></ul><ul><li>The current flows through the first bulb, then through the next bulb , to light up all the bulbs. </li></ul>
5. 5. Disadvantage of a series circuit <ul><li>If one of the bulbs is taken out or damaged, the other bulb will not light up. </li></ul><ul><li>Why? </li></ul><ul><li>Open circuit </li></ul><ul><li>Electricity cannot pass through the circuit. </li></ul>
6. 7. Parallel circuit <ul><li>A parallel circuit is one that splits into two or more branches . </li></ul>
7. 8. <ul><li>There is more than one path for the current to flow through. </li></ul><ul><li>Some current passes through one bulb and the rest flows through the other bulb . </li></ul>
8. 9. Advantage of Parallel circuits <ul><li>If one of the bulbs is taken out or damaged, the other bulb will still light up. </li></ul><ul><li>Why? </li></ul><ul><li>- One part of the circuit is still closed. </li></ul>
9. 11. Arrangement of circuits Series circuit Parallel circuit Each single component is joined one after the other to form a single path Divides into two or more branches and has electrical components in each branch Current flowing through each of the components is the same Current flowing through the components in the different branches may not be the same
10. 12. Lightings at home <ul><li>What kind of circuit is more commonly used? </li></ul><ul><li>Series circuit – Raise left hand </li></ul><ul><li>Parallel circuit – Raise right hand </li></ul>
11. 13. Why use parallel circuit in the household lightings? <ul><li>If one bulb is damaged or switched off, the other bulb can still work. </li></ul>