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PHYSICS

JAMB 2020 - Question 26

Physics 2020 JAMB Past Questions - Question 26: The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20°C and 80°C respectively is

Choose the correct answers from the options given.

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 10Km³ km^-1

C: 5.0 X 10Km³ km^-1

D: 3.0 X 10Kmâ�´km^-1

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Correct Answer

Explanation

Temperature Gradient = Δtemp/thickness

= 80−20/0.02

= 60/0.02

= 3000Km-1

= 3.0 x 103Km-1