# Calculate the resistance of a component based on the

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calculate the resistance of a component based on the gradient of the current–potential difference graph. Questions 1 Fill in the gaps to complete the sentences. Use the words in the box to help you. ( 7 marks ) potential difference resistance voltmeter current y -axis x -axis The letter I is used to represent the current flowing through a component in a circuit. The letter V is used to represent the Potential difference across the component. A current–potential difference ( IV ) graph can be used to find the resistance of the component. The current is plotted on the y axis and the potential difference is plotted on the x axis The circuit must contain an ammeter to measure the current and a voltmeter to measure the potential difference. 2 a Label the components in the diagram below:( 5 marks ) © Oxford University Press 2016 This resource sheet may have been changed from the original. 1 P3.2.4

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Student bump up your grade Name ....................................................................... Class ................... Date ...................... anmeter Figure 1 b Describe how the circuit would be used to collect readings so that a current–potential difference graph could be plotted.
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