A straight-line fit to a graph of current

PHYSICS · Subjective · A Level · Physics · Electricity · Electricity

Problem

A straight-line fit to a graph of current (A) on the vertical axis against potential difference (V) on the horizontal axis for a nichrome wire yields a slope of

0.40\,\text{A V}^{-1}

. Determine the resistance of the wire.

Related theory

Ohm's Law (Macroscopic)
Ohm's Law
Ohm's law, V-I graphs and ohmic/non-ohmic conductors
Current Electricity
Ohm's law and V-I graphs
Electricity
Ohm's law and its limitations
Electric Circuits

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