V - I graph for a conductor at temperatures T1 and T2 is as shown in figure. (T2

Engineering

Physics

Ohm Law and Current Basics

Calculus

Forces and Types of Forces

Question

V - I graph for a conductor at temperatures T₁ and T₂ is as shown in figure. (T₂– T₁) is proportional to

cos 2θ

cot 2θ

sin 2θ

tan 2θ

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$\frac{dV}{di} = R_{2} = R_{0} (1 + α (T_{2} - T_{0}) = \cot θ$
$R_{1} = R_{0} (1 + a (T_{1} - T_{0}) = \tan θ$
$T_{2} - T_{0} = \frac{1}{α} (\frac{\cot θ}{R_{0}} - 1)$
$T_{1} - T_{0} = \frac{1}{α} (\frac{\tan θ}{R_{0}} - 1)$
$T_{2} - T_{1} = \frac{1}{α} (\frac{1 - \tan^{2} θ}{R_{0} \tan θ}) = \frac{2}{R_{0} αtan 2 θ}$