What is a zero error?

Answer 1

if the zero line of vernier scale is not conciding with main scale the zero error exists.Knowing the zero error necessary correction can be made to find correct measurement..Such a correction is called zero correction

Answer 2

It depends on what type of instrument is being used.If it is a Vernier caliper,the zero error is caused when the zero on the vernier scale is shifted either to the right(+ve error) or the left(-ve error) of the of the zero mark on the main scale.The way to find the zero error is quite similar to the Micrometer screw gauge one but still they are different due to their different parts.For the Micrometer screw gauge,the zero error occurs when the zero mark on the circular scale is either shifted up(-ve error) or shifted down(+ve) from the horizontal line on the main scale(sleeve).

Answer 3

The zero error of a measuring instrument is a result of a calibration error. For example, the speedometer dial in my car shows 10 mph even when the car is parked - the needle cannot go below that position. Many rulers have a bit of plastic (or wood) before the graduations start so if you measure from the end of the ruler the value that you see will always be too small by that amount.

Answer 4

A zero error is when a measuring instrument incorrectly shows a non-zero value when it should be showing zero. This error can affect the accuracy of measurements taken using the instrument.

Answer 5

Zero error or parallax error is a common problem faced by physicists. It occurs when readings are unable to be taken accurately due to perception problems of the naked eye.