You visited us 1 times! Enjoying our articles? Unlock Full Access!

Dependence of Resistance on Temperature

The current I...

Question

The current I and voltage V graphs for a given metallic wire at two different temperatures $T_{1}$ and $T_{2}$ are shown in figure.It is concluded that

T_{1} > T_{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

T_{1} < T_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

T_{1} = T_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Nothing can be decided

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $T_{1} > T_{2}$
slope= $m = \frac{I}{V} = \frac{1}{R}$

And, resistance $R \propto T$

$⟹ m \propto \frac{1}{T}$

$⟹ \frac{T_{1}}{T_{2}} = \frac{m_{2}}{m_{1}}$

From graph $m_{2} > m_{1}$

$⟹ \frac{T_{1}}{T_{2}} > 1$

$⟹ T_{1} > T_{2}$

Answer-(A)

Suggest Corrections

Similar questions

Q. The voltage V and current I graph for a conductor at two different temperatures

T_{1}

and

T_{2}

are shown in the figure. The relation between

T_{1}

and

T_{2}

The current-voltage graph for a given metallic wire at two different temperatures $T_{1}$ and $T_{2}$ is shown in the figure. The temperature $T_{1}$ and $T_{2}$ are related as:

Q. The voltage V and current I graphs for a conductor at two different temperatures

T_{1}

and

T_{2}

are shown in the figure. The relation between

T_{1}

and

T_{2}

is?

Q. The current voltage (I – V) graphs for a given metallic wire at two different temperatures

T_{1}

and

T_{2}

are shown in figure. If follows from the graphs that

Q. The current voltage (I – V) graphs for a given metallic wire at two different temperatures

T_{1}

and

T_{2}

are shown in figure. If follows from the graphs that

Join BYJU'S Learning Program

The current I and voltage V graphs for a given metallic wire at two different temperatures T1 and T2 are shown in figure.It is concluded that

The correct option is A T1>T2slope=m=IV=1RAnd, resistance R∝T⟹m∝1T⟹T1T2=m2m1From graph m2>m1⟹T1T2>1⟹T1>T2Answer-(A)

The current I and voltage V graphs for a given metallic wire at two different temperatures $T_{1}$ and $T_{2}$ are shown in figure.It is concluded that

The correct option is A $T_{1} > T_{2}$
slope= $m = \frac{I}{V} = \frac{1}{R}$

And, resistance $R \propto T$

$⟹ m \propto \frac{1}{T}$

$⟹ \frac{T_{1}}{T_{2}} = \frac{m_{2}}{m_{1}}$

From graph $m_{2} > m_{1}$

$⟹ \frac{T_{1}}{T_{2}} > 1$

$⟹ T_{1} > T_{2}$

Answer-(A)