A constant current flows along a wire of radius R and heat conductivity coefficient lamda. Heat is produced in unit volume of the wire at a constant rate W. Find the temperature distribution along the radius in the steady state, when the constant temperature of the surface of the wire is T_(0).

A constant current flows along a wire of radius R and heat conductivit

1.	A constant current flows along a wire of radius R and heat conductivity coefficient lamda. Heat is produced in unit volume of the wire at a constant rate W. Find the temperature distribution along the radius in the steady state, when the constant temperature of the surface of the wire is T_(0).
Answer» ANSWER :`T=T_(0)+((R^(2)-r^(2))W)/(4lamda)`