Formula Conduction

1. Nov 16, 2014

Cozey

1. The problem statement, all variables and given/known data
Two bars are placed between plates whose temperatures are Thotand Tcold . The thermal conductivity of bar 1 is six times that of bar 2 (k1 = 6k2), but bar 1 has only one-third the cross-sectional area (A1=1/3 A2 ). Ignore any heat loss through the sides of the bars. Which statement below correctly describes the heat conducted by the bars in a given amount of time?

2. Relevant equations

3. The attempt at a solution
Bar 1 conducts twice the heat as does bar 2; Q1 = 2Q2 is the answer but how??

2. Nov 16, 2014

Staff: Mentor

You missed section 2 in the homework template which gives the answer: You should have a formula for heat conduction in your textbook/script where you can just plug in values.