Current, Voltage & Resistance
What current, voltage & resistance means
The basic electrical quantities and their units.
Worked example
One question from this skill's own question bank, shown with its full working.
The unit of electric current is the
- ampere
- volt
- ohm
- watt
Working: Current is the flow of charge and is measured in amperes (A) with an ammeter.
Curriculum and exam alignment
Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.
Related skills
Other Electrical Basics skills in Electronics, at the same point in the course.
Other Electronics topics
Related study guides
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Exams that assess current, voltage & resistance
Senior High work on this skill feeds directly into these exam papers. Each page lists the Electronics topics that appear on it.
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Practise current, voltage & resistance
6 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.