Q27 of 216 Page 496

An ammeter has 20 divisions between mark 0 and mark 2 on its scale. Find the least count of the ammeter.

Least count is the smallest valve which we can measure on any device.


Given= Total number of divisions = 20


Divisions are between 0 and 2 mark


To calculate = least count of ammeter


Least count= range/ total number of divisions


= 2/20


Least count of ammeter = 0.1 A


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