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Error due to hysteresis is predominant in
- a)moving coil instrument
- b)moving iron instrument
- c)hot wire instrument
- d)electrodynamometer instruments
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Error due to hysteresis is predominant ina)moving coil instrumentb)mov...
-In dynamometer type instruments air core is used for both fixed coil and moving coil. Hence this instrument is almost free from or have minimum hysteresis and eddy current error. Hysteresis and eddy current errors are present in MC, MI instruments.
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Error due to hysteresis is predominant in
moving iron instrument.Most Upvoted Answer
Error due to hysteresis is predominant ina)moving coil instrumentb)mov...
Explanation:
Moving Iron Instrument:
- Moving iron instruments are prone to error due to hysteresis because they use a piece of soft iron that moves within a magnetic field to measure current or voltage.
- Hysteresis is the phenomenon where the instrument does not return to its original position after the current or voltage being measured is changed. This can lead to inaccuracies in the readings.
Moving Coil Instrument:
- Moving coil instruments, on the other hand, are less affected by hysteresis because they use a coil of wire suspended in a magnetic field to measure current or voltage. The coil has low hysteresis characteristics compared to a piece of iron.
Hot Wire Instrument:
- Hot wire instruments use a heated wire to measure current or voltage and are not typically affected by hysteresis.
Electrodynamometer Instruments:
- Electrodynamometer instruments use the interaction between magnetic fields to measure current or voltage and can also be affected by hysteresis, although to a lesser extent compared to moving iron instruments.
Therefore, the error due to hysteresis is predominant in moving iron instruments compared to moving coil, hot wire, and electrodynamometer instruments.
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Error due to hysteresis is predominant ina)moving coil instrumentb)moving iron instrumentc)hot wire instrumentd)electrodynamometer instrumentsCorrect answer is option 'B'. Can you explain this answer?
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