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Alternating current can not be measured by direct current meters, because –
  • a)
    Alternating current can not pass through an ammeter
  • b)
    The average value of current for complete cycle is zero
  • c)
    Some amount of alternating current is destroyed in the ammeter.
  • d)
    None
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Alternating current can not be measured by direct current meters, beca...
Average current in Ac is sin wave(zero to peak and back to same position) so average current is 0..
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Alternating current can not be measured by direct current meters, beca...
The alternating current changes its direction and magnitude, it becomes zero twice in a complete cycle. In one half cycle current flows in one direction and changes its direction for other half cycle. So, it is not possible by direct current meters to read such a high fluctuation in a second due to inertia and hence, no deflection accounted. Hence, alternating current can not be measured by direct current meters, because the average value of current for the complete cycle is zero.
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Alternating current can not be measured by direct current meters, because–a)Alternating current can not pass through an ammeterb)The average value of current for complete cycle is zeroc)Some amount of alternating current is destroyed in the ammeter.d)NoneCorrect answer is option 'B'. Can you explain this answer?
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