Current, Resistance & Potential Difference (AQA GCSE Physics): Flashcards
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14 cards from this deck
Potential difference
Potential difference
Driving force causing charges to flow in circuit
Unit of potential difference
Unit of potential difference
Volts (V)
Instrument to measure potential difference
Instrument to measure potential difference
Voltmeter
Voltmeter connection type
Voltmeter connection type
Parallel with the component
Resistance
Resistance
Slows down flow of electrical charges in circuit
Unit of resistance
Unit of resistance
Ohms (Ω)
Equation relating V, I and R
Equation relating V, I and R
V in
V in
Potential difference in volts (V)
I in
I in
Current in amps (A)
R in
R in
Resistance in ohms (Ω)
Rearrange to find R
Rearrange to find R
Rearrange to find I
Rearrange to find I
Relationship: resistance & wire length
Relationship: resistance & wire length
Directly proportional
Current if V=8V, R=20Ω
Current if V=8V, R=20Ω
A
