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IGCSE..phys p3...may june 010..31...q11..help!

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zshan:
1

NotAbod:
Link to the paper?

zshan:
http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0625%20-%20Physics/0625_s10_qp_31.pdfhttp://

EMO123:

--- Quote from: zshan on May 27, 2011, 08:32:23 am ---http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0625%20-%20Physics/0625_s10_qp_31.pdfhttp://

--- End quote ---
11. a)

remember V=IR
so make R subject of the formula so i.e. R=V/I
R=1.8/0.45
R=4Ohms

EMO123:

--- Quote from: zshan on May 27, 2011, 08:32:23 am ---http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0625%20-%20Physics/0625_s10_qp_31.pdfhttp://

--- End quote ---

11. a) ii)

E=IVt
I=0.45
V=1.8
t=9*60=540 seconds

therefore E=0.45*1.8*540
               =437.4 J

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