Select the best answer for the given question from the options.
1. Study the I-V graph for three resistors of resistances \(R_1\), \(R_2\) and \(R_3\) and select the correct statement from the following:
2. A student connects a resistor to a variable power supply and measures the current flowing through it for different values of potential difference. The student plots an \(I\)-\(V\) graph and obtains a straight line passing through the origin. The experiment is conducted at a constant temperature.
What does the straight-line graph passing through the origin indicate?
What does the straight-line graph passing through the origin indicate?