A long 1-cm-diameter electric copper cable is embedded in the center of a 25 cm square concrete

Question:

A long 1-cm-diameter electric copper cable is embedded in the center of a 25 cm square concrete block. If the outside temperature of the concrete is 25?C and the rate of electrical energy dissipation in the cable is 150 W per meter length, determine the temperatures at the outer surface and at the center of the cable.GIVENA long electric copper cable embedded in the center of a square concrete blockDiameter of the pipe (Dp) = 1 cm = 0.01 mLength of a side of the block = 25 cm = 0.25 mThe outside temperature of the concrete (To) = 25?CThe rate of electrical energy dissipation (QG /L ) = 150 W/mASSUMPTIONSTwo dimensional, steady state heat transferUniform thermalconductivities