0 votes
0 votes

A plastic sleeve of outer radius $r_0=1$ $mm$ covers a wire (radius $r=0.5\:mm$) carrying electric current. Thermal conductivity of the plastic is $0.15 W/m-K$. The heat transfer coefficient on the outer surface of the sleeve exposed to air is $25 W/m^2-K$. Due to the addition of the plastic cover, the heat transfer from the wire to the ambient will

  1. increase
  2. remain the same
  3. decrease
  4. be zero
in Materials, Manufacturing and Industrial Engineering recategorized by
27.4k points

Please log in or register to answer this question.


Related questions

Welcome to GO Mechanical, where you can ask questions and receive answers from other members of the community.