1
Q
What does current depend on?
A
Potential difference of the cell or battery
Resistance of the components
2
Q
What is resistance measured in?
A
Ohms
3
Q
How do you calculate current using p.d. and resistance?
A
Current (A) =
Potential Difference(V)
———————————-
Resistance (ohms)
4
Q
How is resistance produced?
A
Delocalised electrons collide with ions in the lattice.
5
Q
What is a variable resistor?
A
A circuit component that can be used to change the amount of wire or other resisting material
P1-P3
flashcards
Decks in class (39)
# Cards
-
P1.1.1 - Model Of The Atom 113
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P3.2.8 - Electrical Power6
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P3.2.7 - Sensing Circuits1
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P3.2.6 - Net Resistance And Circuit Calculations11
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P3.2.5 - LDRs And Thermistors6
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P3.2.4 - Graphs Of P.d. And Current8
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P3.2.3 - Resistance5
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P3.2.2 - Series And Parallel Circuits7
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P3.2.1 - Circuits And Potential Difference7
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P3.1.2 - Electric Current9
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P3.1.1 - Electrostatics12
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P2.3.6 - Hydraulics4
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P2.3.5 - Simple Machines10
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P2.3.3 - Gravitational Filed And Potential Energy12
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P2.3.2 - Stretching Materials And Storing Energy2
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P2.3.1 - Stretching Springs11
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P2.2.7 - Work And Power5
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P2.2.6 - Momentum6
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P2.2.5 - Everyday Forces And Their Effects2
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P2.2.4 - Newton's Second Law4
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P2.2.3 - Newton's First Law5
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P2.1.6 - Equations Of Motion And Kinetic Energy2
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P2.1.5 - Velocity Time Graphs5
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P2.1.4 - Distance Time Graphs8
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P2.1.3 - Acceleration5
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P2.1.2 - Vectors And Scalars10
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P2.1.1 - Distance, Time And Speed11
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P2.2.1 - Forces And Interactions8
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P2.2.2 - Free Body Diagrams8
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P1.3.5 - Floating And Sinking4
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P1.3.4 - Liquid Pressure7
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P1.3.3 - Atmospheric Pressure7
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P1.3.2 - Pressure And Volume3
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P1.3.1 - Gas Pressure And Temperature10
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P1.2.4 - Specific Latent Heat6
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P1.2.3 - Specific Heat Capacity4
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P1.2.2 - Energy And Temperature9
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P1.2.1 - Density5
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P1.1.2 - Model Of The Atom 29
