A thin copper wire carries electric current and is insulated by putting a sleeve, of thickness t, over it. In steady state conditions, the rate of heat loss from the insulated wire per unit length is Q. Which of the following is TRUE?
- Q increases monotonically with t.
- Q decreases monotonically with t.
- Q first increases with increase in t, and then it decreases with further increase in t.
- Q first decreases with increase in t, and then it increases with further increase in t.
The Correct Option is C
Solution and Explanation
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