alleryA steady 2 A current flows for 5 seconds. How much charge passes?
A10 coulomb
B2.5 coulomb
C7 coulomb
D3 coulomb
Answer & Solution
Correct answer: A. 10 coulomb
1. One ampere is one coulomb per second, so charge = current x time.
2. 2 x 5 = 10 coulomb; 2.5 comes from dividing and 7 or 3 from adding or subtracting.
3. So 10 coulomb passes.
_Source: Wikipedia, Electric current, Lead section_
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