it moves by 3 mm on the main scale. If there are 50 divisions on the circular scale the least count of the screw gauge is :

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If the screw on a screw-gauge is given six rotations, it moves by 3 mm on the main scale. If there are 50 divisions on the circular scale the least count of the screw gauge is :
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Sep
If the screw on a screw-gauge is given six rotations, it moves by 3 mm on the main scale. If there are 50 divisions on the circular scale the least count of the screw gauge is : If the screw on a screw-gauge is given six rotations it moves by 3 mm on the main [...]
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