ELECTRIC CHARGE
2 marks · NormalState the unit of electric charge and explain what it measures.
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The coulomb (C). It measures the amount of electric charge transferred by a current of 1 ampere in 1 second.
Also accept: Coulomb, the SI unit of charge. It is the charge carried by a current of 1 A in 1 s.
Common mistakes: Confusing coulomb with ampere or volt; Omitting what the unit means
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Marking points
B1 · 1 mark · States the correct unit: coulomb (C).
B1 · 1 mark · Correctly explains what it measures: amount of charge transferred by 1 ampere in 1 second.
Worked solution
The unit of electric charge is the coulomb (C). One coulomb is the amount of charge transferred by a current of 1 ampere in 1 second.