Count Charge Transferred by a Constant Current - Practice 1

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Current is charge transferred per unit time. For a constant current, charge equals current times elapsed time. An ampere is one coulomb per second. These are paper circuit calculations, not instructions for connecting power sources.

Worked example

A constant current of 2 A for 6 s transfers 12 C of charge through the chosen cross-section.

Question 1 Paper circuit 1: a constant 2 A flows through a cross-section for 4 s. How much charge passes, in C? Answer

Question 2 Paper circuit 2: a constant 3 A flows through a cross-section for 5 s. How much charge passes, in C? Answer

Question 3 Paper circuit 3: a constant 4 A flows through a cross-section for 6 s. How much charge passes, in C? Answer

Question 4 Paper circuit 4: a constant 2 A flows through a cross-section for 7 s. How much charge passes, in C? Answer

Question 5 Paper circuit 5: a constant 3 A flows through a cross-section for 8 s. How much charge passes, in C? Answer