Re: capacitors in series - pitfalls?
Hopefully no users of this forum would make the pitfall of calculating the values of unequal series capacitors in the way given for unequal parallel resistors that is set out in the attached, which is from the 1992 reprint of the 1990 edition of a Longman Revise Guide for GCSE CDT-Technology.
I don't know what I find more depressing, the thought that pupils who did know how to do it properly, would have been marked down, or the fact that the author could have made such a fundamental error that was not picked up before the reprint was made. These guides were written by "... the people who set GCSE papers and mark them" , and this particular guide was written by a "... Chief Examiner in GCSE CDT...for a major examining group"!
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