AQA GCSE Combined Science Trilogy · 8464
Specification 6.2.1.2 · Paper 5, Paper 6
Revise: Electrical Charge and CurrentCharge is measured in coulombs, symbol C. Current is measured in amperes, symbol A; ‘amps’ is also acceptable.
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GCSE Combined Science · key term
The unit of electrical charge. One coulomb passes a point in one second when the current is one ampere.
Used by AQA and Edexcel
Specification 6.2.1.2 · Paper 5, Paper 6
Revise: Electrical Charge and CurrentCharge is measured in coulombs, symbol C. Current is measured in amperes, symbol A; ‘amps’ is also acceptable.
Paper 5, Paper 6
The unit of electric charge, with symbol C.
Revise: Potential difference and energy transferPotential difference tells us how much energy is transferred for each coulomb of charge that passes. Charge is measured in coulombs (C) and energy in joules (J). A potential difference of 6 V across a lamp means that 6 J of energy is transferred in the lamp for every 1 C of charge passing through it.
Distinguish charge, measured in coulombs (C), from current, measured in amperes (A). Current is charge passing a point each second.
Use charge in coulombs and potential difference in volts in E = Q × V; the energy transferred is then in joules.
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