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PMMC instrument produces a deflection of 90° when a current of 2 mA passes through the moving coil.
T he instrument is spring cont rolled. Supposing the instrument is redesigned with its spring constant as
before and its p ermanent magnet is replaced with a new permanent magnet which pr oduces twice t he
flux density as before. What would be t he deflect io n if a current of 1 mA is passed through the coil.
T he other features of the PMM C instrument remain the same
  • a)
    45°
  • b)
    135°
  • c)
    90°
  • d)
    180°
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
PMMC instrument produces a deflection of 90° when a current of 2 m...
The deflection of a PMMC (Permanent Magnet Moving Coil) instrument is typically measured in degrees or millimeters. In this case, the instrument produces a deflection of 90, which could refer to a deflection of 90 degrees or 90 millimeters, depending on the unit of measurement being used.
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PMMC instrument produces a deflection of 90° when a current of 2 mA passes through the moving coil.T he instrument is spring cont rolled. Supposing the instrument is redesigned with its spring constant asbefore and its p ermanent magnet is replaced with a new permanent magnet which pr oduces twice t heflux density as before. What would be t he deflect io n if a current of 1 mA is passed through the coil.T he other features of the PMM C instrument remain the samea)45°b)135°c)90°d)180°Correct answer is option 'C'. Can you explain this answer?
Question Description
PMMC instrument produces a deflection of 90° when a current of 2 mA passes through the moving coil.T he instrument is spring cont rolled. Supposing the instrument is redesigned with its spring constant asbefore and its p ermanent magnet is replaced with a new permanent magnet which pr oduces twice t heflux density as before. What would be t he deflect io n if a current of 1 mA is passed through the coil.T he other features of the PMM C instrument remain the samea)45°b)135°c)90°d)180°Correct answer is option 'C'. 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 PMMC instrument produces a deflection of 90° when a current of 2 mA passes through the moving coil.T he instrument is spring cont rolled. Supposing the instrument is redesigned with its spring constant asbefore and its p ermanent magnet is replaced with a new permanent magnet which pr oduces twice t heflux density as before. What would be t he deflect io n if a current of 1 mA is passed through the coil.T he other features of the PMM C instrument remain the samea)45°b)135°c)90°d)180°Correct answer is option 'C'. 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 PMMC instrument produces a deflection of 90° when a current of 2 mA passes through the moving coil.T he instrument is spring cont rolled. Supposing the instrument is redesigned with its spring constant asbefore and its p ermanent magnet is replaced with a new permanent magnet which pr oduces twice t heflux density as before. What would be t he deflect io n if a current of 1 mA is passed through the coil.T he other features of the PMM C instrument remain the samea)45°b)135°c)90°d)180°Correct answer is option 'C'. Can you explain this answer?.
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