I won’t mark any homework on useful circuits handed in after today.
We’ve been looking at the different properties of series and parallel circuits over the past week or so.Â Since there are only 91 days left until Christmas, I thought I would ask you all for some shopping advice.
I need a new set of Christmas tree lights.Â Should I be in the market for a set of lights built in series or parallel?Â Don’t forget to tell me what information influenced your choice!
All ye landlubbers might have noticed that it’s talk like a pirate day today.
Normal appearance will be restored shortly.
Homework for 15 September is to complete the problems on page 7 of the homework booklets I gave out on Tuesday. We have recently reviewed AC & DC as part of the traffic lighting exercise, so you should be able to tackle these without too much difficulty.
If you want to read the text along the x-axis, just click on thisÂ pdf version of the traffic light chart. You will be able to zoom in using Acrobat’s zoom feature and read the full text label for each of the criteria (get Adobe Acrobat Reader here).
I will address the topics attracting the highest red scores first, so we will start with “know that the declared value of an alternating voltage is less than its peak value”. We will start a lesson with this topic in the next week.
Please bring back the problem booklet and your completed homework on Tuesday 29/08.
We looked at the relationship between current, voltage and power in our last lesson. The good people at howstuffworks.com have an excellent page that summarises this topic – click here to check it out.
We had some discussion about the use of voltmeters and ammeters this week. I found this site tonight. It has information on several types of meter and is worth a look.