Dangers of Mains Electricity (AQA GCSE Physics): Flashcards
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What happens when you touch a live wire?
What happens when you touch a live wire?
Large potential difference is produced
What flows through your body if you touch live wire?
What flows through your body if you touch live wire?
Current
Effect of current through body
Effect of current through body
Electric shock
Potential harm from electric shock
Potential harm from electric shock
Injury or death
Does live wire have potential difference when appliance is off?
Does live wire have potential difference when appliance is off?
Yes, still has potential difference
Can you be shocked by a switched-off appliance?
Can you be shocked by a switched-off appliance?
Yes, live wire still has potential difference
What happens when live & Earth wires touch?
What happens when live & Earth wires touch?
Low resistance path created
What flows through low resistance path?
What flows through low resistance path?
Very large current to Earth
Current size when live & Earth touch
Current size when live & Earth touch
Very large
Danger from very large current flow
Danger from very large current flow
Fires