The vehicles carrying inflammable fluids usually have metallic chains touching the ground: (a) To protect tyres from catching dirt from ground (b) It is a custom (c) To alert other vehicles (d) To conduct excess charge due to air friction to ground and prevent sparking

Answer: (d). Friction with air charges the vehicle body. A metal chain touching the ground conducts this charge to earth, so no spark can ignite the fuel. So the answer is (d).

The vehicles carrying inflammable fluids usually have metallic chains… | JEE Main 2024 (5 Apr, Shift 2)

Q49JEE Main 2024 · 5 APR · SHIFT 2Easy

Electric Flux & Gauss's Law

The vehicles carrying inflammable fluids usually have metallic chains touching the ground:

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Answer: (d)

Friction with air charges the vehicle body.
A metal chain touching the ground conducts this charge to earth, so no spark can ignite the fuel.
So the answer is (d).

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Electric Flux & Gauss's Law question from JEE Main 2024 (5 Apr, Shift 2)

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