Find the least count of a milliammeter in which there are ...

CBSE Class 10 Science 2016 Term 1 Paper

Question : 35 of 36

Marks: +1, -0

Find the least count of a milliammeter in which there are

{2 0}

divisions between

{4 0 0}

{\mA}

and

500 {\mA}

marks.

Solution:

\;\text " Least count "\;\;=\;{\;\text " Range "\;}/{\;\text " No. of division "\;}

\;=\;{500-400}/{20}=\;{100}/{20}=5 {\mA}

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