More guides on this topic

• What determines the current in an electric circuit? - OCR 21st Century
• How do series and parallel circuits work? - OCR 21st Century
• What are magnetic fields? - OCR 21st Century
• How do electric motors work? - Higher - OCR 21st Century

Related links

• Combined Science exam practice
• Combined science revision
• Personalise your Bitesize!
• Jobs that use Science
• BBC: Science and Environment
• Save My ExamsSubscription
• Quizlet
• TassomaiSubscription
• Headsqueeze
• Revision BuddiesSubscription