an ammeter has 10 divisions between mark 0 and mark 2 on its scale.Which of the following reading the ammeter cannot read?
1) 0.2 A   2) 1.0 A     3) 1.8 A     c) 1.9 A

4)1.9 A is the correct answer.
Since, the markings will be 0.2A, 0.4A, 0.6A, 0.8A, 1.0A, 1.2A, etc.
Therefore, the only no. which will not come is 1.9A

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