A current of $I=2\text{A}$ flows through a conductor for $t=10\text{s}$. How much charge $q$ passes through the cross-section of the conductor?

Solution

1. The relationship between current, charge, and time is $I=\frac{q}{t}$.
2. Rearranging for charge, $q=I\times t$.
3. Substituting the given values, $q=2\text{A}\times 10\text{s}$.
4. Calculating the product, $q=20\text{C}$.
5. Hence the answer is (C).