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The current - voltage graphs for a given...

The current - voltage graphs for a given metallic wire at two different temperatures `T_1 and T_2` are shown in the figure.

The temperature `T_2` is greater than `T_1`.

Text Solution

Verified by Experts

`I/V`= slope of given graph `=1/R or R=1/(slope)`
Resistance of a metallic wire increases with increase in temperature
`1/((slope)_(T_1)) lt 1/((Slope)_(T_1)) or R_(r_1) gt R_(T_2) or T_2 gt T_1`
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