Physics Unit 2 4.0 / 5 based on 1 rating ? PhysicsElectricityGCSEAQA Created by: TS21Created on: 20-04-15 19:37 Series and Parallel Circuits SERIES: Only one pathway the current can go The total resistance is the sum of all the individual resistors or components The total potential difference of the cells is the sum of the individual cells The potential difference of the supply is shared between the components The current is the same through each component. 1 of 3 Series and Parallel Circuits: PARALLEL CIRCUIT: The potential difference across each component is the same The current is different in different branches of the circuit The total current through the whole circuit is the sum of the current through the separate components. The higher the resistance, the lower the current. 2 of 3 Resistance, Current and Potential Difference As you increase the potential difference, the current increases too. WHEN TEMPERATURE IS CONSTANT ACROSS A FIXED RESISTOR The graph is directly proportional. If the battery is flipped, there are negative readings at the voltmeter. 3 of 3
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