In VI graph, we take potential at y-axis and current at x-axis. The slope of VI graph give us the resistance. In IV graph, Current is at y-axis and potential is at x-axis. The reciprocal of the slope of IV graph shows the resistance.

IV Graph vs VI Graph

IV graph and VI graph are two important graphical representations in the study of electrical circuits. While they may seem similar, there are some key differences between them.

IV Graph

An IV graph, or current-voltage graph, is a graphical representation of the relationship between the current flowing through a component and the voltage across it. It is a plot of current on the y-axis and voltage on the x-axis.

Key features of an IV graph include:

- Slope: The slope of the line on an IV graph represents the resistance of the component. The steeper the slope, the higher the resistance.
- Ohm's Law: An IV graph can be used to verify Ohm's Law, which states that the current flowing through a component is directly proportional to the voltage across it, provided the temperature and other physical conditions remain constant.
- Non-Linear Components: IV graphs can also be used to study non-linear components, such as diodes, which do not follow Ohm's Law.

VI Graph

A VI graph, or voltage-current graph, is a graphical representation of the relationship between the voltage applied to a component and the resulting current flowing through it. It is a plot of voltage on the y-axis and current on the x-axis.

Key features of a VI graph include:

- Slope: The slope of the line on a VI graph represents the conductance of the component. The steeper the slope, the higher the conductance.
- Kirchhoff's Laws: A VI graph can be used to verify Kirchhoff's Laws, which state that the sum of the currents flowing into a node is equal to the sum of the currents flowing out of it, and that the sum of the voltages around a closed loop is equal to zero.
- Non-Linear Components: VI graphs can also be used to study non-linear components, such as transistors, which do not follow Kirchhoff's Laws.

Conclusion

In summary, while IV graphs and VI graphs both represent the relationship between voltage and current in electrical circuits, they do so in slightly different ways. IV graphs plot current against voltage, while VI graphs plot voltage against current. The key features of each graph, such as slope and the laws they can be used to verify, also differ.