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# Physics Resistance against Voltage Graph

1. Hey guys!
I came across a few questions to do with drawing a resistance against voltage graphs for filament lamps and a fixed resistor (Question 11b in January 2010 Unit 2 Edexcel). I searched everywhere but could not find any graph like this. Could someone please help me
2. (Original post by sk1998)
Hey guys!
I came across a few questions to do with drawing a resistance against voltage graphs for filament lamps and a fixed resistor (Question 11b in January 2010 Unit 2 Edexcel). I searched everywhere but could not find any graph like this. Could someone please help me
Hi
The R-V graph for filament lamp is sometimes drawn without the initial straight section but this is more appropriate with relevance to its I-V curve
3. (Original post by InkRed)
Hi
The R-V graph for filament lamp is sometimes drawn without the initial straight section but this is more appropriate with relevance to its I-V curve
It's usually curved as well isn't it? Rather than a sudden change in gradient
4. (Original post by Fangedbeast)
It's usually curved as well isn't it? Rather than a sudden change in gradient
Do you mean the section between the 2 lines? Hmm...it could definitely be argued but I think the ones above work for Alevels. You could consult a teacher/ marking scheme as to what works best for your syllabus component. All I can say is that wouldnt be wrong either.
5. (Original post by InkRed)
Hi
The R-V graph for filament lamp is sometimes drawn without the initial straight section but this is more appropriate with relevance to its I-V curve
Thank you so much. It helped a lot

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