what is zero error?......
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⏪ZERO ERROR =IT IS A TYPE OF ERROR IN WHICH AN INSTRUMENT GIVES A READING WHEN THE TRUE READING AT THAT TIME IS ZERO.
FOR EXAMPLE, NEEDLE OF AMMETER FAILING TO RETURN TO ZERO EVEN WHEN NO CURRENT FLOWS THROUGH IT .
☑ IT CAN BE BOTH POSITIVE AS WELL AS NEGATIVE .
♦In Case it is negative , we add that value to the true value and in case it is positive , we subtract that value from the reading.
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HOPE IT HELPS YOU ☑