Question
A current balance used to define the ampere is designed so that the current through it is constant, as is the distance between wires. Even so, if the wires change length with temperature, the force between them will change. What percent change in force per degree will occur if the wires are copper?

$17 \times 10^{-4}\textrm{ %/C}^\circ$

Solution Video

# OpenStax College Physics Solution, Chapter 22, Problem 79 (Problems & Exercises) (5:01)

#### Sign up to view this solution video!

View sample solution
Video Transcript