Variation of resistance of the conductor with temperature is as shown. Temperature coefficient of the conductor is

Question

Variation of resistance of the conductor with temperature is as shown. Temperature coefficient of the conductor is <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/p-wjavs0f0kkpe.png" /> (A) (R0/m) (B) mR0 (C) m2R0 (D) (m/R0)

Tardigrade Admin · Accepted Answer

Rt=R0(1 + α Δ t) Where α is temperature coefficient of conductor =R0+R0α Δ T Slope of graph m=R0α ∴ α =(m/R0) <img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/p-wjavs0f0hnct.png" />

Q. Variation of resistance of the conductor with temperature is as shown. Temperature coefficient of the conductor is

$\frac{R _{0}}{m}$

$m R_{0}$

$m^{2} R_{0}$

$\frac{m}{R _{0}}$

$R_{t} = R_{0} (1 + α Δ t)$
Where $α$ is temperature coefficient of conductor
$= R_{0} + R_{0} α Δ T$
Slope of graph $m = R_{0} α$
$∴ α = \frac{m}{R _{0}}$

Q. Variation of resistance of the conductor with temperature is as shown. Temperature coefficient of the conductor is

mR0​​

mR0​

m2R0​

R0​m​

Rt​=R0​(1+αΔt) Where α is temperature coefficient of conductor =R0​+R0​αΔT Slope of graph m=R0​α ∴α=R0​m​

$\frac{R _{0}}{m}$

$m R_{0}$

$m^{2} R_{0}$

$\frac{m}{R _{0}}$

$R_{t} = R_{0} (1 + α Δ t)$
Where $α$ is temperature coefficient of conductor
$= R_{0} + R_{0} α Δ T$
Slope of graph $m = R_{0} α$
$∴ α = \frac{m}{R _{0}}$