Question

The range of a voltmeter is 0 to 2.0V. If if has 20 divisions between 0
mark and 0.5 V mark, the least count is :

• A. 0.020 V
• B. 0.025 V
• C. 0.050 V
• D. 0.250 V

Answer 1

The correct option is A 0.020 V

least count= minimum measure of the unit between two marks/ number of division

=0.5/20

=0.0205