Physics Zero Error

The magnitude of the error is 0 2. If it is not then note the reading.

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Zero error zero errors of vernier caliper.

Physics zero error. In fig 9 the pointer is on the left side of the zero mark. This reading is called zero error. But as you can guess when the meter is in used the reading obtained will be less than the true value.

Hence the reading from the meter in fig 10 is smaller than the true value and as a result the magnitude of the error must be added to the reading. Before taking any reading it is good practice to close the jaws or faces of the instrument to make sure that the reading is zero. A vernier caliper is used to measure an object with dimensions up to 120mm with an accuracy of 0 1mm an instrument which does not register a zero reading whe.

When the jaws are closed the vernier zero mark coincides with the zero mark on its fixed main scale. A zero error arises when the measuring instrument does not start from exactly zero.

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