Physics GCSE
Danger of the live wire with an open switch
What Danger of the live wire with an open switch means in Physics GCSE, as defined for OCR.
Definition of Danger of the live wire with an open switch
Check what you remember
Read the wording for your board, then hide it and explain Danger of the live wire with an open switch in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A switch in the live wire stops current when open, but the live wire on the supply side stays at a high potential relative to earth.
Topics that use Danger of the live wire with an open switch
- Powering Earth (OCR GCSE)
Related terms
- Alternating current in the home
- Alternating voltage
- Changing potential difference in power transfer
- Direct voltage
- earth wire
- fossil fuels
- Frequency of the UK mains supply
- High-voltage transmission advantages
Using Danger of the live wire with an open switch in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge