Electric Circuits (1 Viewer)

[nsbrando]

Investigate power circuits for different types of household appliances and explain why different circuits are required for light and power.

 

[premskies]

This is pretty much the vital and core pieces of information you need to know in order to smash this dotpoint, in my opinion at least.

• When a current passes through a conductor, heat is generated
• The amount of heat generated increases as the current through the conductor increases
• Each piece of household wiring (e.g. lighting, power points, appliances) is designed to carry a certain maximum current without overheating
• Wiring that has to carry high current is made thicker to decrease the resistance and therefore, decrease the amount of heat generated
• If a wire is overloaded by passing excessive current through it, it can become hot enough to cause a fire
• In conclusion, there are different circuits in the house so that the current flowing through each is manageable, further allowing for safety to be maintained.

Hope it helped!

 

[Kimyia]

Haven't touched prelim in a while, so might be wrong, but I think the reasons for the different circuits include being able to draw a different amount of current for each circuit to suit its use, a circuit breaker can then be adjusted/picked to suit a particular circuit and its current, and if one of the circuits breaks down then the others will still work.