Question
Draw a I – V graph for a linear resistor. What does its slope represent?
✓
Answer
The slope of I-V graph (=
$
\begin{aligned}
& \Delta l \\
& \Delta v
\end{aligned}
$
) is equal to the reciprocal of the resistance of the conductor, i.e.
Slope $=\frac{\Delta I}{\Delta V}=\frac{1}{\text { Resistance of conductor }}=$ conductance
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