Question

X-V graph for the metallic wires X and Y at constant temperature are as shown in figure.Assuming that the two wires have same length and same diameter, then which of the two wires has higher resistance?​

Answer 1

Explanation:

The slope V/Iof the graph represents 1/R

Since the graph marked Y has lesser slope, it represents higher resistance.

Since the length and diameter of the two wires is same, using the relation R=ρ1/A

, the resistively of wire Y will be higher.

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