Required Practical: Investigating Resistance (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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Practise the cards
9 cards from this deck
Purpose of investigating I-V characteristics
Purpose of investigating I-V characteristics
To identify which type of resistor each component is
Three components tested in I-V practical
Three components tested in I-V practical
Filament lamp, diode, resistor at fixed temperature
Role of variable resistor in I-V experiment
Role of variable resistor in I-V experiment
Changes the current through the circuit
Two measurements recorded in I-V practical
Two measurements recorded in I-V practical
Current and potential difference
Why swap battery wires in I-V experiment
Why swap battery wires in I-V experiment
To get negative current and p.d. readings
Ammeter reading when battery wires are swapped
Ammeter reading when battery wires are swapped
Negative current
How to record p.d. when battery wires swapped
How to record p.d. when battery wires swapped
As a negative value
Graph plotted for each component in I-V practical
Graph plotted for each component in I-V practical
I-V graph
Three resistor types identified from I-V graphs
Three resistor types identified from I-V graphs
Ohmic, non-ohmic, diode