A student carries out an experiment and plots the V-I graph of three samples of nichrome wire with resistances R1, R2 and R3 respectively as shown in the figure. What is the relation between these resistors?
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Answered by
186
Heya
Since the SLOPE of graph represent RESISTANCE. So as you will see in the graph that the slope is greatest in R3 and it decreases to R2 and then R1.
therefore R3 > R2 > R2.
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Answered by
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Answer:R3 > R2 > R1
Explanation:
Current flow is inversely proportional to resistance. Resistance can be obtained from the slope of the V-I graph,Highest resistance will show less flow of current.
Slope for R 1 is maximum and slope for R 3 is the minimum. R1 > R2 > R3
Comparison of the resistances of the samples from the slopes.
We know that,
Resistance of the wire =1/ Slope of the I−Vgraph
R 3>R 2>R 1
The correct order of resistance is R 3>R 2>R 1
#SPJ2
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