The radius of a thin wire is measured by ________Measurement and Measuring Instruments Chapter 1TNSCERT Class 9
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The radius of a thin wire is measured by least count measurement and the instrument to be used is the screw gauge. This will give the diameter of the wire. In order to get the least count, first you have to calculate the pitch.
The formula is:
Pitch = distance moved by screw/ no. of full rotations given
Next comes the least count. The formula to be followed is:
Least count = pitch / total number of divisions on the circular scale
This will give you the diameter of the wire which when divided by 2 will yield to the radius.
The formula is:
Pitch = distance moved by screw/ no. of full rotations given
Next comes the least count. The formula to be followed is:
Least count = pitch / total number of divisions on the circular scale
This will give you the diameter of the wire which when divided by 2 will yield to the radius.
Answered by
7
Screw gauge.
Is the answer
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