Calculate the correct value.
1. The values of current \(I\) flowing in a given resistor for the corresponding values of potential difference \(V\) applied across the ends of resistor are given below in the table :
| \(I\) (\(amperes\)) | \(0.4\) | \(0.8\) | \(1.2\) | \(1.6\) | \(2.0\) |
| \(V\) (\(volts\)) | \(1.2\) | \(2.4\) | \(3.6\) | \(4.8\) | \(6.0\) |
Plot a graph between \(V\) and \(I\) and calculate the resistance of that resistor.
The formula for resistance based on the graph is
The value of resistance is \(\Omega\)
[Note: Enter the answer as a whole number.]
2. If the resistor has a length of \(5\ m\) and a cross-sectional area of \(3\times10^{-6}\ \text{m}^2\), calculate the resistivity of the material.
The value of resistivity is \(\times10^{-6}\ \Omega\ m\)
[Note: Enter the answer upto two decimal places.]