Question

what what does the slope of V-I graph represent ?

Answer 1

Answer:

The V-I graph at any point represents the resistance of a conductor.

Answer 2

The slope represents Resistance in this case.

• The graph of voltage versus current shows the relationship of linearity between the two factors.
• When there is a potential difference between the two ends of the circuit, the current starts flowing through the conductor wire and both are related to each other proportionally.
• This forms the base of Ohm's law.
• However, there is the resistance offered by the conductor during the current flow in the circuit which is constant at all points.
• Therefore Ohm's law states:

=> Potential difference (V) ∝ Current In a conductor (I)

=> Potential difference (V) = Resistance (constant) × Current In a conductor (I)

∴Resistance = $\frac{Potential difference (V)}{Current (I) }$

=> Slope = Resistance = $\frac{V}{I}$

• Hence, the slope represents resistance which is constant.