A heat-conducting rod,0.90 m long and wrapped in insulation,is made of an aluminum section that is 0.20 m long and a copper section that is
Long.Both sections have a cross-sectional area of
The aluminum end and the copper end are maintained at temperatures of
And
Respectively.The thermal conductivities of aluminum and copper are 205 W/m ∙ K (aluminum)and 385 W/m ∙ K (copper).What is the temperature of the aluminum-copper junction in the rod with steady state heat flow?
A)100°C
B)93°C
C)86°C
D)80°C
E)74°C

Question

A heat-conducting rod,0.90 m long and wrapped in insulation,is made of an aluminum section that is 0.20 m long and a copper section that is 
Long.Both sections have a cross-sectional area of 
The aluminum end and the copper end are maintained at temperatures of 
And 
Respectively.The thermal conductivities of aluminum and copper are 205 W/m ∙ K (aluminum)and 385 W/m ∙ K (copper).What is the temperature of the aluminum-copper junction in the rod with steady state heat flow?
A)100°C 
B)93°C 
C)86°C 
D)80°C 
E)74°C

Quizplus · Accepted Answer

The Answer of A heat-conducting rod,0.90 m long and wrapped in insulation,is made of an aluminum section that is 0.20 m long and a copper section that is 
Long.Both sections have a cross-sectional area of 
The aluminum end and the copper end are maintained at temperatures of 
And 
Respectively.The thermal conductivities of aluminum and copper are 205 W/m ∙ K (aluminum)and 385 W/m ∙ K (copper).What is the temperature of the aluminum-copper junction in the rod with steady state heat flow?
A)100°C 
B)93°C 
C)86°C 
D)80°C 
E)74°C

A Heat-Conducting Rod,0