PHYSICS · Single correct · AP · Physics 2: Algebra-based · Thermodynamics · Thermodynamics
Problem
For a certain rod carrying a steady heat current Q, its length is halved and its cross-sectional area is tripled while the temperature difference across it and the material remain the same. What is the percentage increase in the heat current?
(a) 200%
(b) 50%
(c) 500%
(d) 300%