P2 Electricity
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P4.2 Current & Charge
Electrical Circuit Symbols What is a Voltmeter & Ammeter The Difference Between Electrons & Charge What is Electric Current? How Metallic Bonding Explains Electric Current Electron Flow vs Conventional Current What Are Series & Parallel Circuits? Incomplete Circuits Current, Charge Flow & Time Equation 1 Current, Charge Flow & Time Equation 2 P4.3 Potential Difference & Resistance What is Potential Difference? Pd, Energy Transferred & Charge Equation 1 Pd, Energy Transferred & Charge Equation 2 Difference Between Cells & Batteries What Is Resistance? Resistance, Current & Pd Equation Worked Example Resistance, Current & Pd Equation What Causes Resistance To Increase or Decrease? What is Ohm's Law Interpreting Ohm's Law Graph 4.4 Component Characteristics How Filament Lamps Affect Resistance What is a Light-Emitting Diode? How Diodes Affect Resistance Light Dependent Resistors (LDRs) Thermistors 4.5 Series Circuits What is a Series & Parallel Circuit? Current in Series Circuits Potential Difference in Series Circuits Resistors in Series Circuits 4.6 Parallel Circuits Current In Parallel Circuits Potential Difference in Parallel Circuits Resistance in Parallel Circuits |
5.1 Alternating Current
Comparing Direct (DC) & Alternating (AC) Current The National Grid Meeting Demand in The National Grid 5.2 Cables & Plugs Three-Core Cable Three-Pin Plug Mains Appliances & Wall Socket Circuit 5.3 Electrical Power & Potential Difference Introducing Electrical Power Equation 1 Power, Energy, Time Equation 2 Electrical Power Worked Examples of Electrical Power Equation How To Choose The Right Fuse Worked Examples of How to Chose The Right Fuse Heating Effect Due To Heating How Current Affects Transmission of Power 5.4 Electrical Current & Energy Transfers Energy Transfer In a Circuit Worked Examples of Energy Transfer in a Circuit |
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