Yes, it's the gradient. But for ohmic materials (linear resistances), the gradient is same as V/I.Cici2017 said:
Yes =) Thanks for making it clearcnh1995 said:
Resistance is the measure of how much a material or component opposes the flow of electric current. It is measured in ohms (Ω) and is represented by the symbol "R" in equations.
Resistance can be calculated from a V-I (voltage-current) graph by dividing the change in voltage (ΔV) by the change in current (ΔI). This is known as Ohm's Law: R = ΔV / ΔI.
The slope of a V-I graph represents the resistance of the material or component. A steeper slope indicates a higher resistance, while a flatter slope indicates a lower resistance.
The x-intercept on a V-I graph represents the point at which there is no current flowing through the material or component, also known as the "open circuit" point. This can be used to determine the minimum amount of voltage required to start a current flow.
The shape of a V-I graph can provide information about the type of material or component being tested. For example, a straight line graph indicates a linear resistor, while a curved graph may indicate a non-linear resistor or a diode.