A student plots V–I graphs for three samples

Question

A student plots V–I graphs for three samples of nichrome wire with resistances $R ₁, R ₂, a n d R ₃ .$

Choose the correct statement that holds true for this graph:

Smart Achievers · Accepted Answer

(4)

As it is clear From the graph, the current for conductor $A ₂$ is less than that for $A ₁, a n d A ₁$ is less than $A ₃$ .
we can say , $I ₐ ₂ < I ₐ ₁ < I ₐ ₃ .$

$W e k n o w, R = V / I o r R \propto 1 / I .$

If I is less, then R will be more

$I ₐ ₂ < I ₐ ₁ < I ₐ ₃ R ₂ > R ₁ > R ₃ .$

Solution

Q.
A student plots V–I graphs for three samples of nichrome wire with resistances $R ₁, R ₂, a n d R ₃ .$

Choose the correct statement that holds true for this graph:

1 $R ₁ = R ₂ = R ₃$

2 $R ₁ > R ₂ > R ₃$

3 $R ₃ > R ₂ > R ₁$

4 $R ₂ > R ₁ > R ₃$

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Solution

Q. A student plots V–I graphs for three samples of nichrome wire with resistances R₁, R₂, and R₃. Choose the correct statement that holds true for this graph:

1 R₁ = R₂ = R₃

2 R₁ > R₂ > R₃

3 R₃ > R₂ > R₁

4 R₂ > R₁ > R₃