The temperature gradient across a copper rod of... - JAMB Physics 1999 Question
The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20°C and 80°C respectively is
A
3.0 x 102Km-1
B
3.0 x 103Km-1
C
5.0 x 103Km-1
D
3.0 x 104Km-1
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Correct Option: B
Temperature Gradient = (\frac{\Delta {\text{temp.}}}{\text{thickness}})
= (\frac{80 - 20}{0.02})
= (\frac{60}{0.02})
= 3000Km-1
= 3.0 x 103Km-1
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