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In a voltmeter, there are 20 divisions between the 0 mark and 0.5 V mark. The least count of the voltmeter is
- a)0.020 V
- b)0.025 V
- c)0.050V
- d)0.250V
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
In a voltmeter, there are 20 divisions between the 0 mark and0.5 V mar...
There are 20 divisions are given between 0 mark to 0.5v mark .
we know,
Least count of a instrument is the smallest value that can be measured by the given instrument .
e.g., Least count = gap between two marks { range}/number of divisions
= (0.5 - 0)v/20 = 0.5/20 = 0.025v
Hence, least count of the voltmeter is 0.025v
Most Upvoted Answer
In a voltmeter, there are 20 divisions between the 0 mark and0.5 V mar...
Explanation:
To find the least count of a voltmeter, we need to divide the smallest division by the number of divisions.
Given, there are 20 divisions between 0 and 0.5 V.
Smallest division = 0.5 V / 20 = 0.025 V
Therefore, the least count of the voltmeter is 0.025 V.
Hence, option B is the correct answer.
Summary:
- To find the least count of a voltmeter, divide the smallest division by the number of divisions.
- In this case, the smallest division is 0.025 V and there are 20 divisions between 0 and 0.5 V.
- Therefore, the least count of the voltmeter is 0.025 V.
To find the least count of a voltmeter, we need to divide the smallest division by the number of divisions.
Given, there are 20 divisions between 0 and 0.5 V.
Smallest division = 0.5 V / 20 = 0.025 V
Therefore, the least count of the voltmeter is 0.025 V.
Hence, option B is the correct answer.
Summary:
- To find the least count of a voltmeter, divide the smallest division by the number of divisions.
- In this case, the smallest division is 0.025 V and there are 20 divisions between 0 and 0.5 V.
- Therefore, the least count of the voltmeter is 0.025 V.
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Community Answer
In a voltmeter, there are 20 divisions between the 0 mark and0.5 V mar...
For 20 divisions the reading is 0.5..so for a single division.... 0.5 / 20 =0.025 V
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In a voltmeter, there are 20 divisions between the 0 mark and0.5 V mark. The least count of the voltmeter isa)0.020 Vb)0.025 Vc)0.050Vd)0.250VCorrect answer is option 'B'. Can you explain this answer?
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