test graphics card for errors

All physical quantities can be measured. In spite of using the best and most appropriate instrument or device to measure, we may not get the true value. Hence, the difference between the true value and the measured value is called 'error'. There are different types of errors th..

These errors always have the same sign. These can be eliminated by detecting the source of error and the rule governing this error. They are of 4 type..

These are inherent errors of the measuring instruments and apparatus. E.g., zero error of a measuring instrument. All instrumental errors come under this category. Instrumental errors, if any, can be detected by interchanging two similar instruments or by us..

Sometimes, even if the error is known, it cannot be corrected due to imperfection in the experimental arrangement. e.g., Loss of heat due to radiation in calorimetry. These errors always exist, but observations can be correcte..

When we make use of various measuring instruments, we encounter various types of errors. They ar..

These are called accidental errors, which occur irregularly and at random, in magnitude and direction. (When the experiment is repeated, one may obtain different results each tim..

This error occurs due to a person's mistake while performing the experiment. It cannot be corrected. It is of three types:- Neglect of the source of error: This is a result of negligence of sources of errors. E.g., plotting field of a magnet, improper setting of m..

These are irregularly occurring errors, which are at random, in magnitude and direction. They are not due to any definite cause and hence, are called accidental errors. A person may get different readings while experimenting, say, for E.g., while measuring the diameter of a wir..

It is the magnitude of difference between the true value and the measured value. Absolute error = True value - measured value If arithmetic mean is regarded as true value, absolute error in i t h measurement is given by It is expressed in the units of measured value. Fina..

Final result of an experiment is calculated from a number of observations taken from different instruments, connected through a formu..