The fixed jaw is connected to the main scale of the caliper while the moving jaw is connected to the Vernier scale. One of these jaws is moving while the other is fixed. Students know what is the Least count of vernier callipers.There are two types of jaws, the upper and lower jaws which are used to measure inside and outside dimensions respectively.Students get to know the use of vernier calipers.Where 'l' is length of the block, 'b' the breadth and 'h' the height of the block. Where 'D' is the internal diameter of beaker / calorimeter and 'd' the depth of beaker / calorimeter. Volume of the beaker / calorimeter = internal area of the cross section x depth If nth division of Vernier scale coincides with any division of the main scale, then the Vernier scale reading (VSR) is ДЇinding the Volumes Volume of a Beaker / Calorimeter If the zero of the vernier scale lies ahead of the Nth division of the main scale, then the main scale reading (MSR) is When a body is between the jaws of the Vernier Caliper Record the position of zero of the Vernier scale on the main scale. The least count or the smallest reading which you can get with the instrument can be calculated as ДЇirst calculate the least count and only then place the object between the two jaws. The depth measuring prong helps to measure the depth of an object. The retainer helps to retain the object within the jaws of the Vernier calipers. The inner measuring jaws helps to take the inner dimension of an object. The outer measuring jaws helps to take the outer dimension of an object 4. On the Vernier scale, 0.9 cm is divided into ten equal parts. It can be fixed in any position by the retainer. Vernier ScaleДЄ vernier scale slides on the strip. If both the zeros do not coincide, there will be a positive or negative zero error. When the two jaws are in contact, the zero of the main scale and the zero of the Vernier scale should coincide. It carries the inner and outer measuring jaws. The main scale consists of a steel metallic strip graduated in centimeters at one edge and in inches at the other edge. Another jaw, containing the vernier scale, moves over the main scale. The Vernier Calliper consists of a main scale fitted with a jaw at one end. It was the first practical tool for exact measurements that could be sold at an affordable price to ordinary machinists. The modern Vernier calliper was invented by Joseph R. First the tips of the calliper are adjusted to fit across the points to be measured and the calliper is then removed and the distance between the tips is measured using a ruler. It can be as simple as a compass with inward or outward-facing points. To measure the internal diameter and depth of a given beaker/calorimeter and hence find its volume.ДЄ calliper is a device used to measure the distance between two opposing sides of an object.To measure the length, width and height of the given rectangular block.To measure the diameter of a small spherical / cylindrical body.To know the use of the Vernier Calipers.

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