What is Biot number or Biot modulus? - Heat Transfer

Q.  The Biot number or Biot modulus is given by
- Published on 12 Aug 15

a. the ratio of external convection resistance to the internal conduction resistance
b. the ratio of internal conduction resistance to the external convection resistance
c. multiplying internal conduction resistance and external convection resistance
d. none of the above

ANSWER: the ratio of internal conduction resistance to the external convection resistance

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