Resistance Year 9 Science.

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Presentation transcript:

Resistance Year 9 Science

Learning Objectives Explain the concept of resistance Create a circuit with a variable resistor State the effect of increasing the resistance State the relationship between voltage, current and resistance Apply the formula triangle

Resistance The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor. resistance

Construct the circuit below Keep the voltage on 12V Increase the resistance provided by the variable resistor Copy the diagram and state the effect of increasing the resistance on both the current and the brightness of the bulb

Applying Ohm’s law Voltage (V) Current (A) Resistance (Ω) 12 3 2 6 4 0.1 0.2 5 10

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