Why is a galvanometer with low sensitivity preferred for certain measurements?

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SUMMARY

The discussion focuses on the concept of voltmeter sensitivity, specifically addressing a voltmeter with a sensitivity of 40 kΩ/V and a maximum scale voltage of 10 V, resulting in an internal resistance of 400 kΩ. The participants clarify that low sensitivity in galvanometers is preferred for certain measurements due to its ability to minimize loading effects on the circuit being measured. This allows for more accurate readings in high-resistance circuits, as detailed in the linked resource.

PREREQUISITES
  • Understanding of voltmeter sensitivity and its implications
  • Knowledge of internal resistance calculations
  • Familiarity with galvanometer operation principles
  • Basic electrical circuit theory
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  • Research "How to calculate voltmeter sensitivity" for practical applications
  • Explore "Galvanometer loading effects" to understand measurement accuracy
  • Learn about "High-resistance circuit measurement techniques"
  • Investigate "Internal resistance of measuring instruments" for deeper insights
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Electronics students, electrical engineers, and technicians involved in precision measurement and circuit analysis will benefit from this discussion.

Drao92
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I don't know if i understood very well what does voltmetre sensitivity mean.
So, if a have a voltmetre with the sensitivity 40kohm/V and his U( in scale) is 10 V, the voltmetre internal resistance is 400kohm?
 
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explain low sensitivity of a galvanometer
 

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