Additional physics- circuits (basics) 0.0 / 5 ? PhysicscircuitsGCSEAQA Created by: nimrahali12Created on: 25-09-16 14:29 The standard test circuit you use if? you want to know the resistance of the componant 1 of 13 You find the resistance by/ measuring the current through and the pd across the component 2 of 13 The ammeter is measured in? current (amps) flowing through components 3 of 13 This must be placed in? in series 4 of 13 This can be put? anywhere in series in the main current , but never in parallel like the voltmeter 5 of 13 The voltmeter is measured in? the potential difference (in volts) across the component 6 of 13 Where should the voltmeter be placed? in parallel around the component under test-not around the variable resistor or the battery 7 of 13 Five important points- This very basic circuit is used for testing? components and for getting V-I graphs for them 8 of 13 Five important points-The component , the ammeter and the variable resistor are all in series which means? they can be put in any order in the main circuit 9 of 13 Five important points-The voltmeter can only be placed in? parallel around the component under test 10 of 13 Five important points-As you vary the variable resistor it alters the? current flowing through the circuit 11 of 13 This allow you to take ? several pairs of readings from the ammeter and voltmeter 12 of 13 You can then plot these values for? current and voltage on a V-1 graph and find the resistance 13 of 13
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