The temperature gradient across a copper rod of thickness...
The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20º and 80ºC respectively is?
3.0 x 102km−1
3.0 x 103km−1
5.0 x 103km−1
3.0 x 104km−1
Correct answer is B
Δ = △θδ=80−200.02
= 3.0 x 103km−1