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Transcript
Name: Resistance of Parallel and Series Circuits Below, draw an oval around the series circuits, a square around the parallel circuits, and a triangle around the complex circuits. B A C D E Name: Series Circuit Build a simple circuit with a power source and two resistors in series, as shown. On the diagram, label the resistors with their resistance, in Ohms. 1. Using your ohmmeter, measure the total resistance across the two resistors. Record this here. 2. Predict the total resistance in the circuit if you were to add a third resistor in series. Explain your reasoning. 3. Using your ohmmeter, measure the actual total resistance across the three resistors. Record this here. Parallel Circuit Build a simple circuit with a power source and two resistors in parallel, as shown. Label the resistors with their resistance, in Ohms. 4. Using your ohmmeter, measure the total resistance across the two resistors. Record this here. 5. Predict the total resistance in the circuit if you were to add a third resistor in parallel. Explain your reasoning. 6. Using your ohmmeter, measure the actual total resistance across the three resistors. Record this here. Name: 7. Blow through the two sets of straws provided by your teacher. How does this demonstration relate to resistors in series and parallel? Complex circuits are made up of both series and parallel circuits. The applications of these circuits are very popular in Christmas tree lights. Look at the teacher demo on the desk. 8. Which type of circuit has brighter bulbs? Explain why this is the case. 9. Which type of circuit goes out entirely when only one bulb burns out? Explain, in detail, why this is the case. 10. Would it be better to have your home wired with series or parallel circuits? Explain, in detail, your answer.