Practice Electric Current in Physics

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

The rate of flow of electric charge through a conductor. Measured in amperes (A).

Current is like the flow rate of water in a pipe — how much charge passes a point each second.

easy

A charge of 10 \text{ C} flows through a wire in 5 \text{ s}. What is the electric current?

medium

A current of 0.5 \text{ A} flows through a lamp for 2 \text{ minutes}. How much charge passes through the lamp?

easy

How long does it take for 15 \text{ C} of charge to flow through a circuit with a current of 3 \text{ A}?

medium

A phone charger delivers a steady current of 2.0 \text{ A} for 30 \text{ minutes}. How much total electric charge flows through the cable?