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Question

What is the least count of a spring balance?


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Solution

Determine the least count of a spring balance.

  • A least count of an instrument is the smallest value of a physical quantity that can be measured properly by using the instrument.
  • For example, with a spring balance with a range of 0to25 kilograms, each kilogram on the scale is split into ten equal pieces.
  • Therefore, the minimum value this could measure is one hundred grams, which may be calculated as follows:
    Measurement =1kg
    Total Number of divisions =10
    Least count =(110)=0.1kg(or100g)
    Mostly as result, the lowest count of this instrument is 100g. Similarly, the least counts of different spring balances with varied ranges may be discovered.

Hence, the least count of a measurement device is the smallest physical amount that can be measured reliably using the instrument.


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