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Ohm's Law: Voltage, Current and Resistance

Measure how current changes with voltage through a resistor and find resistance from the slope of a graph.

Grade 11ExperimentScience OlympiadScienceEngineeringElectricityPhysicsData AnalysisAdvanced60 to 90 min6 materialsAdult supervision required

What you'll learn

  • Wire a simple circuit with a voltmeter and an ammeter correctly
  • Plot I against V and interpret the gradient
  • Compare ohmic and non ohmic behavior

Objective

Verify Ohm's law for a resistor, find its resistance from a graph, and contrast it with a filament bulb.

STEM concepts

Ohm's lawResistanceCurrent and voltageOhmic and non ohmic conductors
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Step-by-step instructions
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Why does it work, challenge and project report

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