Learn about and revise electrical circuits, charge, current, ... OCR 21st Century Current-voltage graphs. Electrical current depends on resistance and potential difference.

Revise Electric circuits for your physics GCSE foundation and higher triple science exams with Bitesize interactive practice quizzes covering feedback and common errors.

Imagine electrical circuits that you could print off and use for a few hours before they melted away and stop functioning or changed their function. A spy’s best friend, they could become ...