PhysicsIf while performing an experiment the pointer/needle of the ammeter and voltmeter do not coincide with the zero marks on the scales then there is:

If while performing an experiment the pointer/needle of the ammeter and voltmeter do not coincide with the zero marks on the scales then there is:


  1. A
    Zero error
  2. B
    No zero error
  3. C
    Both 1 and 2
  4. D
    None of these 

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    Solution:

    If the needle/s of the ammeter and voltmeter do not coincide with the zero marks on the scale when performing the experiment, then there is a zero error. To arrive at the final result, the zero error value is subtracted from or added to the observed value depending on the type of zero error.
     
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