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प्रश्न
Which of the following is a disadvantage of friction in mechanical systems?
पर्याय
It prevents objects from slipping
It causes energy dissipation and lowers machine efficiency
It helps in walking and movement
It keeps objects in their original position
MCQ
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उत्तर
It causes energy dissipation and lowers machine efficiency
Explanation:
The friction causes energy dissipation in machines, lowering their efficiency.
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