Episode 5 — Electricity and Magnetism - Electric Circuits

Voltage and Current in

Learners will be able to:

• Identify the conventional direction of electric current flow in a circuit. • Explain why some currents are classified as direct current (DC) and others as alternating current (AC). • Calculate the amount of charge passing through a point in a circuit using the equation Q = I × T, where Q is the charge in coulombs, I is the current strength in amperes, and T is the time in seconds. • Describe how an ammeter measures electric current and explain why it must be connected in series with the components of a circuit. • Apply the formula W = V × Q to calculate the work done by charges passing through a component in a circuit.