Two readings for a conductor at constant temperature are given: Point P: Current ,…

PHYSICS · Multi-part · A Level · Physics · Electricity · Electricity

Problem

Two readings for a conductor at constant temperature are given: Point P: Current

= 0.25\,\text{A}

, Voltage

= 2.5\,\text{V}

Point Q: Current

= 0.75\,\text{A}

, Voltage

= 7.5\,\text{V}

(a) Calculate the slope with

V

on vertical axis and

I

on horizontal axis. (b) Calculate the slope with axes interchanged. (c) Show that the product of the two slopes equals unity.