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The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions...

Physics
JAMB 2021

The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20º and 80ºC respectively is?

  • A. 3.0 x 10\(^{2}\)km\(^{-1}\)
  • B. 3.0 x 10\(^{3}\)km\(^{-1}\)
  • C. 5.0 x 10\(^{3}\)km\(^{-1}\)
  • D. 3.0 x 10\(^{4}\)km\(^{-1}\)
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Correct Answer: Option B
Explanation

\(\Delta\) = \(\frac{\bigtriangleup\theta}{\delta} = \frac{80-20}{0.02}\)

= 3.0 x 10\(^{3}\)km\(^{-1}\)

There is an explanation video available below.

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Explanation Video

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JAMB 2025 Whatsapp Group - Join us here
JAMB CBT 2025 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB 2025 UTME Revisions Have Begun
WAEC GCE Nov/Dec 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 332996
WAEC GCE Nov/Dec 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 332996
JAMB CBT 2025 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB 2025 Whatsapp Group - Join us here
JAMB 2025 UTME Revisions Have Begun