VERNIER CALIPER LEAST COUNT PDF

Vernier caliper least counts formula is calculated by dividing the smallest reading of the main scale with the total number of divisions of the vernier scale. LC of vernier caliper is the difference between one smallest reading of the main scale and one smallest reading of vernier scale which is 0. Vernier caliper is an instrument used to measure the length, diameter, radius, etc. It is used by the lathe mechanic for making metallic cylinders of different sizes.

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Vernier Caliper : A device which is used to measure small lengths or distance such as diameter of a cylinder or sphere is called Vernier caliper.

Construction : A Vernier caliper consist of a rectangular steel bar whose one side is graduated in centimeters. There is also a small scale consisting of ten division which slides over the main scale.

This scale is known as Vernier scale V. Working : To measure the length of an abject, it is placed between the two jaws of the Vernier calipers.

The distance between the zero of the main scale and the zero of the Vernier scale is equal to length of object. First we find the reading of main scale then find the number of Vernier division which coincide with one of the main scale division. We multiply the vernier divisions by the least count and then ass to main scale reading to get the required length. C or vernier constant V. Calculation Of Least Count : Mathematically, the value of least count or vernier constant is calculated as following.

The error which arises due to the incorrect gradation of the scales of the verneir calipers is called Zero Error. To find the positive zero error, look at the Vernier scale and not the number of divisions of the venier scale which coincide with one the main scale divisions and multiply this number by least count. Negative Zero Error: I f the zero of the Vernier scale is one the left of the main scale zero, then the zero error will be negative and zero correction will be positive.

To find the zero error note the number of Vernier scale division which coincide with one of the main scale and multiply with least count. Least count of vernier is 0. Question is asked from vernier calliper in jee-main and jee-advanced.

In ncert and many physics books this topic has not been explained. Reading about vernier calliper as given above one can solve question in competitive exam. Thanks a lot. Your email address will not be published. This site uses Akismet to reduce spam. Learn how your comment data is processed. Zero Error. Recommended Posts. Talha Pasha September 7, at pm. That is good for physics student. Santhos August 3, at pm. Nice explanation for L. But what to do with the zero error was not dealt with.

It is so important chapter in physics. Akshay December 14, at am. Edwin davies November 24, at pm. But that calliper contains only 5 division in vernier scale. Vijay Kumar December 18, at pm. Presentation is in proper sequence. Basics of vernier in simple way. Dipak makwana.

What is the formula to calculate total reading with a vernier calipers? Leave a Reply Cancel reply Your email address will not be published.

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Vernier Caliper – Working, Calculation Of Least Count & Zero Error

Vernier Caliper : A device which is used to measure small lengths or distance such as diameter of a cylinder or sphere is called Vernier caliper. Construction : A Vernier caliper consist of a rectangular steel bar whose one side is graduated in centimeters. There is also a small scale consisting of ten division which slides over the main scale. This scale is known as Vernier scale V.

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How to find Vernier caliper least count formula?

Least count of an instrument has a direct relationship with the accuracy and precision of that instrument. Therefore it ensures you select the right instrument for your measurement. For example, if you want to measure a 6. Ruler is not a right measurement tool. Because minimum dimension a ruler can measure accurately is 1 mm. In this article we will discuss what is lease count? And how to calculate the least count of a measuring instrument.

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What is Least Count and how to calculate it

In Physics , the least count of a measuring instrument is the smallest and accurate value in the measured quantity that can be resolved on the instrument's scale. Any measurement made by the instrument can be considered repeatable to no less than the resolution of the least count. The least count of an instrument is inversely proportional to the precision of the instrument. For example, a sundial may only have scale marks representing the hours of daylight; it would have a least count of one hour. A stopwatch used to time a race might resolve down to a hundredth of a second, its least count. The stopwatch is more precise at measuring time intervals than the sundial because it has more "counts" scale intervals in each hour of elapsed time.

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Vernier Caliper Least Count & Length Reading Formula

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