GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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measuring the current in a coil that is known to be about 3 x 10-6 A
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measuring the diameter of a ball bearing that is known to be about 3 x 10-3 m
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measuring the mass of a grain of sand that is known to be about 3 x 10-3 g
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measuring the moment used to turn a screw that is known to be about 3 x 10-6 N m
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Detailed explanation-1: -Solutions. A screw gauge is an instrument that is used for measuring the diameter of thin wires, and the thickness of thin sheets such as those made up of glass or plastics. Thus, a screw gauge is used for measuring the diameter of a ball bearing that is known to be about 3×10−3 m.
Detailed explanation-2: -Micrometer screw gauge is defined as an instrument that is used for measuring the diameter of thin wires, the thickness of small sheets such as glass or plastics.
Detailed explanation-3: -Caliper Gauge: is a measuring tool to measure outside/ inside diameter/ thickness etc.
Detailed explanation-4: -micrometre, also called micron, metric unit of measure for length equal to 0.001 mm, or about 0.000039 inch. Its symbol is m. The micrometre is commonly employed to measure the thickness or diameter of microscopic objects, such as microorganisms and colloidal particles.
Detailed explanation-5: –Micrometer screw gauge used for measurement of outer diameter of tube.-The inner diameter of a test tube can be measured by using a pair of vernier calipers. Hope It Helps You!