Circuits pres
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![Page 1: Circuits pres](https://reader036.fdocuments.in/reader036/viewer/2022082700/54be93c74a79596c4d8b45bc/html5/thumbnails/1.jpg)
Ch. 17 - ElectricityCh. 17 -
ElectricityIII. Electrical CircuitsIII. Electrical Circuits
Circuit componentsSeries circuitsParallel circuitsHousehold circuits
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A. Circuit ComponentsA. Circuit Components
A - battery C - light bulb
B - switch D - resistor
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B. Series CircuitsB. Series Circuits
Series Circuit current travels in a single path
• one break stops the flow of current current is the same throughout circuit
• lights are equal brightness each device receives a fraction of the total
voltage • get dimmer as lights are added
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C. Parallel CircuitsC. Parallel Circuits
Parallel Circuits current travels in multiple paths
• one break doesn’t stop flow current varies in different branches
• takes path of least resistance• “bigger” light would be dimmer
each device receives the total voltage• no change when lights are added
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D. Household CircuitsD. Household Circuits
Combination of parallel circuits too many devices can cause wires to
overheat
Safety Features: fuse - metal melts, breaking circuit circuit breaker - bimetallic strip bends
when hot, breaking circuit