The figure below is a graph of voltage versus current / obtained when a student was studying resistance and resistivity. (a) Use proper graphical analysis to calculate the resistance of the wire. (b) If the diameter of the wire is 0.30 mm and its length is 1.2 m, calculate the resistivity of the wire. (c) If you were to replace the wire with one made from the same material but having a diameter of 0.15 mm and a length of 1.0 m, calculate the voltage across the wire when the current is 0.25 A.

The figure below is a graph of voltage versus current / obtained when a student was studying resistance and resistivity. (a) Use proper graphical analysis to calculate the resistance of the wire. (b) If the diameter of the wire is 0.30 mm and its length is 1.2 m, calculate the resistivity of the wire. (c) If you were to replace the wire with one made from the same material but having a diameter of 0.15 mm and a length of 1.0 m, calculate the voltage across the wire when the current is 0.25 A.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 14P

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