Unit 2 - Electricity

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2.1 Current, potential difference and resistance

 

 1 Standard circuit diagram symbols

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2 Electrical charge and current

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3 Current, resistance and potential difference

 

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4 Resistors

 

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2.2 Series and parallel circuits

 

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2.3 Domestic uses and safety

 

1 Direct and alternating potential difference

 

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2 Mains electricity

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2.4 Energy transfers

 

1 Power

 

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2 Energy transfers in everyday appliances

 

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3 The National Grid

 

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2.5  Static Electricity (physics only)

 

1 Static charge

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2 Electric fields

 

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