There are ammeter has 20 divisions between 0 and 2 on a meter scale. Its least count is? 

Explanation:

• The least count of a measuring instrument is the smallest change in the quantity being measured that can be detected. In the case of a meter scale with 20 divisions between 0 and 2, the least count can be calculated using the formula:

\([ \text{Least Count} = \frac{\text{Range}}{\text{Number of Divisions}} ]\)

LC = 2- 0 / 20 = 0.1 A