Finding Resistance: Investigating the Relationship between Resistance and Length of Nichrome Wire

The video tutorial demonstrates an experiment to investigate the relationship between the resistance and length of a nichrome wire. Catherine replaces a fixed resistor with a nichrome wire, measures the current and potential difference, and records the data. By varying the wire length, she calculates resistance using Ohm's Law and plots the data on a graph. The results show that resistance is directly proportional to the wire's length, confirming the linear relationship.

What is the significance of the line of best fit in the graph plotted by Catherine?

What pattern does Catherine observe in the resistance values as the length of the nichrome wire increases?

How does the ratio of resistance to length remain consistent throughout the experiment?

What conclusion can be drawn about the relationship between resistance and length based on Catherine's findings?