If 30 C of electric charge flows past a point in a wire in 2 minutes, what is the current in the wire?

**Answer:**

Charge, **Q** = 30C

Time taken for the charge flow, **t** = 2 minutes = 120s

(Since the unit of current, Ampere (A) is also equal to Coulomb per second (Cs-1), the unit of time must be changed to second)

Current, I = ?

\begin{gathered}
I = \frac{Q}
{t} \hfill \\
I = \frac{{30}}
{{120}} = 0.25A \hfill \\
\end{gathered}