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Q: Why is use of zero error necessary in a measuring instrument?

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we can find the zero error by closing the jaw of screw guage if the zero of main scale(MS) is concide with the zero of circular scale (CS) there is no zero error and if they are not concide there is a zero error in screw guage .

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Undefined: You cannot divide by zero

There is no negative zero or positive zero, zero is just zero so you can take it off. For example: 3-2-0= just 3-2

Zero squared is zero. It is essentially zero times one. Your calculator may give an error message when doing this problem. See the web link for details.

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The zero error helps in correcting the misreading you get from any instrument. It helps in maintaining the sensitivity of the instruments.

The zero error of a measuring instrument is the measure that it shows when it should actually be showing zero.

It is a defect in a measuring device (Vernier Callipers & Screw Gauge) & zero error is caused by an incorrect position of the zero point.

Improper calibration of the measuring instrument. If the measuring instrument is not at zero prior to measuring the object you will get a systematic error which, is a value either always higher or always lower then the actual value of the object.

Zero error is defined as the condition where a measuring instrument registers a reading when there should not be any reading. In case of Vernier calipers it occurs when a zero on main scale does not coincide with a zero on Vernier scale. Source: calculatored and written by Shaun Murphy

The Vernier caliper is an extremely precise measuring instrument Error is almost impossible The error that we must always look out for is the zero error and parralex error.

vernier scale zero and main scale zero are not coincide with each other means, the instrument has zero error.

You check and adjust instrument zero and, if you are measuring ohms, you also check and adjust ohms zero.

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

A zero error is the reading that an instrument gives when it is measuring nothing. It can also appear as a constant error in all measurements. For example, you cannot measure accurately from the end of a ruler because there is a little bit that sticks out beyond the zero point. Kitchen scales usually need to be zero-ed before use. My car's speedometer does not go below 5 mph so even when parked, the instrument says I'm moving!

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