Posterous theme by Cory Watilo

2.9

2.9 starter

08 December 2011

15:56
· Look up at the lights in the class room. Most of them are working but one of them is not.
· Do you think that the bulbs are connected in series or parallel?
· Tell the person next to you. Explain why.

Domestic lighting is wired in parallel

Why?
· If it was wired in series…

[cid:image001.png@01CCB98D.38FA3230]

...and one of the bulbs broke, all of the lights would go out


· If it was wired in parallel…

[cid:image002.png@01CCB98D.38FA3230]

...and one of the bulbs broke, the other lights would stay on

2.9 notes

08 December 2011

16:30
· 2.9 explain why a series or parallel circuit is more appropriate for particular applications, including domestic lighting
[cid:image003.png@01CCB98D.38FA3230]

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