JAMB Physics 2008 Objective — Question 38
Question 38 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2008 Objective paper, with the correct answer and a full explanation.
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38. A short chain is sometimes attached to the back of a petrol tanker to
- A. generate more friction
- B. ensure the balancing of the tanker
- C. caution the driver when overspeeding
- D. conduct excess charges to the earthCorrect
Explanation
The chain conducts (earths) excess static charges generated by friction during motion, preventing sparks.
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