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1) The following circuits A and B given by figure 2 are used to calculate the resistance of resistors R1 and R2. Circuit A Vs Circuit B Vs R2 Figure 2 a) Explain in detail which circuit is used to measure: i) Very low resistance accurately. ii) Very high resistance accurately.

1) The following circuits A and B given by figure 2 are used to calculate the resistance of resistors R1 and R2. Circuit A Vs Circuit B Vs R2 Figure 2 a) Explain in detail which circuit is used to measure: i) Very low resistance accurately. ii) Very high resistance accurately.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter17: Commercial And Industrial Air-conditioning Control Systems
Section: Chapter Questions
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1) The following circuits A and B given by figure 2 are used to calculate the resistance of resistors R1 and R2. Circuit A Circuit B Vs Vs R1 R2 Figure 2 a) Explain in detail which circuit is used to measure: i) Very low resistance accurately. ii) Very high resistance accurately. Hint: Ammeters have a very low resistance and voltmeters have a very high resistance) b) Why are Wheatstone bridge circuits very important in measuring resistance accurately? 2) Consider figure 3
Transcribed Image Text:1) The following circuits A and B given by figure 2 are used to calculate the resistance of resistors R1 and R2. Circuit A Circuit B Vs Vs R1 R2 Figure 2 a) Explain in detail which circuit is used to measure: i) Very low resistance accurately. ii) Very high resistance accurately. Hint: Ammeters have a very low resistance and voltmeters have a very high resistance) b) Why are Wheatstone bridge circuits very important in measuring resistance accurately? 2) Consider figure 3
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