A short chain is usual attached to the back of a petrol tanker trailing behind…

A short chain is usual attached to the back of a petrol tanker trailing behind it to ensure that the
  • A.
    petrol tanker is balanced on the wh eel
  • B.
    heat generated by friction in the engine can be conducted to the floor
  • C.
    charges generated by friction in the tanker can be conducted to the earth
  • D.
    the tanker moves slowly as the chain touches the floor
  • E.
    chain produces sound for the resonance of the tanker engine
Correct Answer: Option C
Explanation
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Find the range of values of m which satisfy (m – 3)(m – 4) A. 2 B. -3…
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