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the instrument can be made more sensitive by making vernier constant less ie by incresing the no of division on vernier scale or by decreasing the value of main scale.
It is a defect in a measuring device (Vernier Callipers & Screw Gauge) & zero error is caused by an incorrect position of the zero point.
It is not known for certain but vernier callipers were found in a Greek wreck where the ship was dated to the 6th Century BC.
1.By vernier-callipers. 2.By screw gauge. 3.By milimeter scale.
The least count of vernier caliper is 0.01mm while the least count of screw gauge is 0.001 mm. ... Difference between screw gauge and vernier caliper in tabular form. Micrometer Screw Gauge Vernier caliper It has a circular scale. It has a vernier scale. It rotates to measure the objects. It slides to measure the length.
where on the vernier caliper would you read to obtain the vernier scale reading
The zero error of vernier calliper is defined as :-The zero error is equal to the distance between the zero of the main scale and the zero of the vernier scale.
No unit for vernier scale coincidence. But as we multiply it by least count which has unit then we get vernier scale reading with the same unit. Of course main scale reading and vernier scale reading would have the same unit
The difference between one main scale division and one vernier division is called vernier constant. this is the minimum length which can be measured accurately with the help of a vernier calipers. it is also called the least count of a vernier. Value of one main scale division is "1 mm" and value of one vernier scale division is "0.9 mm".So,the value of vernier constant is "1-0.9=0.1 mm".
A metre scale measures upto one millimetre.In order to measure lengths less than one millimeter a vernier callipers or screw gauge is used.
1)Main Scale is fixed(It does not move) Vernier scale slides along main scale.2)Least count of Mainscale is 0.1cmLeast count of vernier scale is 0.01cm
Vernier scale consists of main scale and vernier scale. The first line or the zeroth line coinciding with the main scale reading is the main scale reading. The vernier line except zeroth line coinciding with any line on main scale is the main scale reading.