Skip to main content
UploadLanguage (EN)Support
BusinessMobileSocial MediaMarketingTechnologyArt & PhotosCareerDesignEducationPresentations & Public SpeakingGovernment & NonprofitHealthcareInternetLawLeadership & ManagementAutomotiveEngineeringSoftwareRecruiting & HRRetailSalesServicesScienceSmall Business & EntrepreneurshipFoodEnvironmentEconomy & FinanceData & AnalyticsInvestor RelationsSportsSpiritualNews & PoliticsTravelSelf ImprovementReal EstateEntertainment & HumorHealth & MedicineDevices & HardwareLifestyle
Uploaded byFRITZYPREMAYLON1
PPT, PDF54 views

SCIENCE 6 PPT Q3 - Series and Parallel Circuits.ppt

In a series circuit, there is only one path for electrons to flow through each component in the circuit. As more components are added in series, the total resistance increases and the current decreases. In a parallel circuit, there are multiple pathways for current to flow simultaneously through different branches. As more components are added in parallel, the total resistance decreases and the current remains the same. Components in series represent resistance like boulders in a stream, while parallel circuits provide alternative pathways like branches in a stream. The total resistance of components in series is calculated by adding the resistance of each individual component.

Education◦
Download to read offline
Series and Parallel Circuits
Circuits In order for electricity to flow we need Power source Closed circuit There are two type of circuits we will explore Series circuit Parallel circuit
Series Circuit In a series circuit there is only one path for the electrons to flow In other words all the components are in series with each other Because there is only one path each charge will go through each resistor
Predict, Test and Explain • How will the brightness of the bulbs change as we add more in series? • What does this imply about the current in the circuit? + + +
Parallel Circuit In a Parallel circuit there are multiple pathways for charge to flow Each device is placed on it’s own separate branch Current goes through each of the branches at the same time
• How will the brightness of the bulbs change as we add more in parallel? • What does this imply about the current in the circuit? Predict, Test and Explain + + +
Key Concepts Bulbs in series represent a source of resistance to current flow, similar to boulders in a stream which can block the flow of water Bulbs in parallel offer additional pathways for current flow, similar to branches of a stream which can carry more water.
Calculating Resistance in Series Circuits The rule for calculating Series Circuits is to… Add up the values of each individual in the series. R1 + R2 + R3… 5 + 5 + 10 20 Ω (ohms)
Calculating Resistance in Series Circuits Add up the values of each individual in the series. R1 + R2 + R3… 10 + 20 + 10 40 Ω (ohms) 10 20
Calculating Resistance in Series Circuits  The rule for calculating Series Circuits is to…  Add up the values of each individual in the series.  1 1 1 1 -- = -- + -- + -- Rt R1 R2 R3  1 1 1 1 -- = -- + -- + -- Rt 4 4 2  1 -- = .25 + .25 + .5 Rt  1 -- = 1 Rt  1 -- = 1 Rt 20  1 -- = 1 Rt  1 -- = Rt 1  Rt = 1 Ω (ohms)
Calculating Resistance in Series Circuits • The rule for calculating Series Circuits is to… • Add up the values of each individual in the series. • 1 1 1 1 -- = -- + -- + -- Rt R1 R2 R3 • 1 1 1 1 -- = -- + -- + -- Rt 100 200 1000 • 1 -- = .01 + .005 + .001 Rt • 1 -- = .016 Rt • 1 -- = .016 Rt 20 • 1 -- = Rt .016 • Rt = 62.5 Ω (ohms) 100 200 1000