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Units and Dimensions

In a voltmete...

Question

In a voltmeter there are $20$ divisions between $0$ mark to $0.5$ V mark, calculate the least count of the voltmeter.

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Solution

Least count $L . C . = \frac{0.5}{N o . o f d i v i s i o n s}$
Least count of voltmeter $L . C = \frac{0.5}{20} = 0.025$

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