Resistors - AQA 9-1 GCSE
In this lesson learners will complete the required practical I-V Characteristics;
Use circuit diagrams to construct appropriate circuits to investigate the I-V characteristics of a variety of circuit elements including a filament lamp, a diode and a resistor at constant temperature.
They will also cover part of 6.1.2.4
Students should be able to explain that, for some resistors, the value of R remains constant but that in others it can change as the current changes.
The current through an ohmic conductor (at a constant temperature) is directly proportional to the potential difference across the resistor. This means that the resistance remains constant as the current changes.
The resistance of components such as lamps, diodes, thermistors and LDRs is not constant; it changes with the current through the component.
The current through a diode flows in one direction only. The diode has a very high resistance in the reverse direction.
The resistance of a filament lamp increases as the temperature of the filament increases.
Please note - I use the font GRILLED CHEESE. I have added a PDF in case you don't have the font / want to see what it looks like
In this lesson learners will complete the required practical I-V Characteristics;
Use circuit diagrams to construct appropriate circuits to investigate the I-V characteristics of a variety of circuit elements including a filament lamp, a diode and a resistor at constant temperature.
They will also cover part of 6.1.2.4
Students should be able to explain that, for some resistors, the value of R remains constant but that in others it can change as the current changes.
The current through an ohmic conductor (at a constant temperature) is directly proportional to the potential difference across the resistor. This means that the resistance remains constant as the current changes.
The resistance of components such as lamps, diodes, thermistors and LDRs is not constant; it changes with the current through the component.
The current through a diode flows in one direction only. The diode has a very high resistance in the reverse direction.
The resistance of a filament lamp increases as the temperature of the filament increases.
Please note - I use the font GRILLED CHEESE. I have added a PDF in case you don't have the font / want to see what it looks like
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Excellent thankyou!
Really good resource - well laid out and clear to follow. Especially useful for pupils who need chunked instructions. Thank you
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