A short chain is sometimes attached to the back... - JAMB Physics 2008 Question
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 car
correct option: d
The friction between the tanker and air creates charges which the chain conducts to the ground.
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