Answer:
15.78 m
Explanation:
Length = resistance×area/resistivity
Resistance = 15 ohms
Area = πd^2/4 = 3.142×(0.15/1000)^2/4 = 1.767375×10^-8 m^2
Resistivity = 1.68 ohm-meter
Length = 15×1.767375×10^-8/1.68×10^-8 = 15.78 m
Explanation:
Cementite solid phase is very hard and brittle.We know that in when percentage of carbon is increase in the iron then depending on the percentage of carbon different type of structure is produce .\
Cementite has 6.67 % of carbon 93.3 % of iron by weight .and so it is very hard and brittle material.
So above given statement in question is wrong because cementite is not ductile
Answer:
(a) Effectiveness of the regenerator= 0.433
(b) The rate of heat removal=21.38 kW
Explanation:
The solution and complete explanation for the above question and mentioned conditions is given below in the attached document.i hope my explanation will help you in understanding this particular question.