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प्रश्न
Explain the principle of a hydraulic machine. Name two devices which work on this principle.
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उत्तर
The principle of a hydraulic machine is that a small force applied on a smaller piston is transmitted to produce a large force on the bigger piston.
Hydraulic press and hydraulic brakes work on this principle.
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संबंधित प्रश्न
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Reason: Pressure is thrust per unit area.
