I-V graph for two identical conductors of different materials A and B is shown in the figure. Which one of the two has higher resistivity?

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Solution

The resistivity of material B is higher.
Reason: If the same amount of the current flows through them,then $V_{B} > V_{1}$ , and from Ohm's law $R_{S} > R_{A}$ .Hence the resistivity of the material B is higher.

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I-V graph for two identical conductors of different materials A and B is shown in the figure. Which one of the two has higher resistivity?

The resistivity of material B is higher.Reason: If the same amount of the current flows through them,then VB>V1 , and from Ohm's law RS>RA.Hence the resistivity of the material B is higher.

The resistivity of material B is higher.
Reason: If the same amount of the current flows through them,then $V_{B} > V_{1}$ , and from Ohm's law $R_{S} > R_{A}$ .Hence the resistivity of the material B is higher.