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What Would You Suggest to a Student If While Performing an Experiment He Finds that the Pointer/Needle of the Ammeter and Voltmeter Do Not Coincide with the Zero Marks on the Scales When the - Science

Question

Short Note

Answer the following question.
What would you suggest to a student if while performing an experiment he finds that the pointer/needle of the ammeter and voltmeter do not coincide with the zero marks on the scales when the circuit is open? No extra ammeter/voltmeter is available in the laboratory.

Solution

This is called the zero error of the scale of ammeter or voltmeter. If there is a zero error, then this error is subtracted from the value that depicts when the circuit is closed, otherwise, the accurate current or potential difference will not be recorded.

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