The voltage V and current I graph for a condu | vedclass

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(A) For a conductor,the resistance $R$ is given by the slope of the $V-I$ graph,where $R = \frac{V}{I}$.From the figure,the slope of the line correspo

Vedclass · Accepted Answer

$T_{1} > T_{2}$

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(A) For a conductor,the resistance $R$ is given by the slope of the $V-I$ graph,where $R = \frac{V}{I}$.From the figure,the slope of the line corresponding to $T_{1}$ is greater than the slope of the line corresponding to $T_{2}$.Therefore,$R_{1} > R_{2}$.For a metallic conductor,the resistance increases with an increase in temperature $(R \propto T)$.Since $R_{1} > R_{2}$,it follows that $T_{1} > T_{2}$.

$I (A)$	$V (V)$	$I (A)$	$V (V)$
$0.2$	$3.94$	$3.0$	$59.2$
$0.4$	$7.87$	$4.0$	$78.8$
$0.6$	$11.8$	$5.0$	$98.6$
$0.8$	$15.7$	$6.0$	$118.5$
$1.0$	$19.7$	$7.0$	$138.2$
$2.0$	$39.4$	$8.0$	$158.0$

The voltage $V$ and current $I$ graph for a conductor at two different temperatures $T_{1}$ and $T_{2}$ is shown in the figure. The relation between $T_{1}$ and $T_{2}$ is

Similar Questions

What conclusion can you draw from the following observations on a resistor made of alloy manganin?
$I (A)$ $V (V)$ $I (A)$ $V (V)$
$0.2$ $3.94$ $3.0$ $59.2$
$0.4$ $7.87$ $4.0$ $78.8$
$0.6$ $11.8$ $5.0$ $98.6$
$0.8$ $15.7$ $6.0$ $118.5$
$1.0$ $19.7$ $7.0$ $138.2$
$2.0$ $39.4$ $8.0$ $158.0$

$A$ $V-i$ graph for a conductor is given. The resistance is proportional to which of the following?

The current flowing through a circuit is shown in the figure. What is the resistance of the circuit?

Which of the following graphs represents an ohmic resistance?

Select the correct statement.

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