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Swamp resistance and condenser are used
  • a)
    To reduce the error while measuring DC quantities in a moving iron instrument
  • b)
    To reduce the error while measuring AC quantities in a moving iron instrument
  • c)
    To reduce the error while measuring DC quantities in a moving coil instrument
  • d)
    None of the above
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Swamp resistance and condenser are useda)To reduce the error while mea...
Concept:
  • Swamping resistor and condenser are used to reduce the frequency error in MI instruments.
  • In moving iron instruments, the change in frequency causes an error due to the change in magnitude of eddy currents set up in the metal portion of the instruments.
  • The reactance of the operating coil changes by the change in frequency.
  • At high frequencies, the meter will give a reading lower than the actual value and at low frequencies, the meter gives a reading higher than the actual.
  • This type of error can be eliminated only if the impedance of the coil is independent of the frequency. This is achieved by having a capacitance in shunt with the swamping resistance of the coil as shown in the figure.
  • In the above figure, C is condenser and r is swamping resistance, whereas L and R represent the reactance and resistance of operating coil in moving iron instrument.
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Swamp resistance and condenser are useda)To reduce the error while measuring DC quantities in a moving iron instrumentb)To reduce the error while measuring AC quantities in a moving iron instrumentc)To reduce the error while measuring DC quantities in a moving coil instrumentd)None of the aboveCorrect answer is option 'B'. Can you explain this answer?
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Swamp resistance and condenser are useda)To reduce the error while measuring DC quantities in a moving iron instrumentb)To reduce the error while measuring AC quantities in a moving iron instrumentc)To reduce the error while measuring DC quantities in a moving coil instrumentd)None of the aboveCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Swamp resistance and condenser are useda)To reduce the error while measuring DC quantities in a moving iron instrumentb)To reduce the error while measuring AC quantities in a moving iron instrumentc)To reduce the error while measuring DC quantities in a moving coil instrumentd)None of the aboveCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Swamp resistance and condenser are useda)To reduce the error while measuring DC quantities in a moving iron instrumentb)To reduce the error while measuring AC quantities in a moving iron instrumentc)To reduce the error while measuring DC quantities in a moving coil instrumentd)None of the aboveCorrect answer is option 'B'. Can you explain this answer?.
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