Question

If there are 8 divisions between the 0 mark and 0.4 mark of an ammeter,it's least count is:
1)0.050A, 2)0.025A,3)0.040A ,4)0.020A

Answer 1

Given, Range=0.4 A; total no. of divisions=8
Least count = Range / total no. of divisions.
=0.4/8=0.050 A.