Electric welding

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Lessons are for learners and teachers with an account. Browsing the curriculum — subjects, strands and what each sub-strand covers — stays open to everyone.

• 8 sections of explanation, worked examples and diagrams
• 1 practice task with hints and worked answers
• A quiz that marks itself as you go
• Your progress kept across every subject you take

Other lessons in this sub-strand

1. The heating effect of a current
2. Investigating the heating effect
3. Factors affecting heating
4. Electrical energy
5. Electrical power
6. Power and energy calculations
7. The cost of electrical energy
8. The electric kettle
9. The electric iron
10. The filament bulb
11. Electric heaters
12. Electric cooking
13. Electric welding
14. Fuses and circuit breakers
15. Plugs and earthing
16. Avoiding electric shock
17. Efficiency of appliances
18. Choosing efficient appliances
19. Innovations using the heating effect
20. Review of the heating effect