A cylindrical resistor element on a circuit board dissipates 0.22 W of power in an environment at 28°C. The resistor is 1.2 cm long, and has a diameter of 3 mm. Assuming heat to be transferred uniformly from all surfaces. What is the heat flux on the surface of the resistor (W/m )?

A cylindrical resistor element on a circuit board dissipates 0.22 W of power in an environment at 28°C. The resistor is 1.2 cm long, and has a diameter of 3 mm. Assuming heat to be transferred uniformly from all surfaces. What is the heat flux on the surface of the resistor (W/m )?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.48P: The handle of a ladle used for pouring molten lead is 30 cm long. Originally the handle was made of...

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Question

A cylindrical resistor element on a circuit board dissipates 0.22 W of power in an
environment at 28°C. The resistor is 1.2 cm long, and has a diameter of 3 mm. ASsuming
heat to be transferred uniformly from all surfaces. What is the heat flux on the surface
of the resistor (W/m )?

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