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junior college 2 | H2 Maths
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How toget D?
Date Posted: 7 years ago
Views: 390
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Thanks! Do u lnow why my method of treating P as 2R and Q as R/3 cannot work?
Because resistance is inversely proportional to cross sectional area, which uses square of the radius or square of half the diameter. You used just the linear quantity of the diameter, you need to square it.
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