JAMB Physics 2015 Objective — Question 46
Question 46 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2015 Objective paper, with the correct answer and a full explanation.
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Which of the following is NOT an application of expansion in metals?
- A. Bimetallic strip thermometer
- B. Temperature control in an electric iron
- C. Compensated balance wheel of a watch
- D. Sagging of telegraph wiresCorrect
Explanation
Sagging of telegraph wires is due to gravity/sag design, not thermal expansion of metals being applied purposefully.
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