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
Verified Correct Answer: C.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #23916)