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A 220 V, single phase, watt hour meter has a constant load of 4 A passing through it for 6 hour at unity power factor. The meter disc makes 2376 revaluation during this period. If the number of revolution made by the meter are 1542 when operating at 220 V and 6 A for 4 hours, then power factor of the load would be
    Correct answer is between '0.62,0.68'. Can you explain this answer?
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    A 220 V, single phase, watt hour meter has a constant load of 4 A pass...

    Energy meter constant 

    Energy consumed when the meter make 1542 revaluations

    Now energy consumed
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    A 220 V, single phase, watt hour meter has a constant load of 4 A pass...
    Given Data:
    - Voltage (V) = 220 V
    - Current (I1) = 4 A
    - Time (t1) = 6 hours
    - Number of revolutions (N1) = 2376 revolutions

    Calculating Power Consumed:
    - Power (P1) = V x I1 = 220 V x 4 A = 880 W
    - Energy consumed (E1) = P1 x t1 = 880 W x 6 hours = 5280 Wh

    Calculating Speed of Meter Disc:
    - Speed of disc (S1) = N1 / t1 = 2376 revolutions / 6 hours = 396 revolutions/hour

    Given Data for Second Case:
    - Current (I2) = 6 A
    - Time (t2) = 4 hours
    - Number of revolutions (N2) = 1542 revolutions

    Calculating Power Consumed in Second Case:
    - Power (P2) = V x I2 = 220 V x 6 A = 1320 W
    - Energy consumed (E2) = P2 x t2 = 1320 W x 4 hours = 5280 Wh

    Calculating Speed of Meter Disc in Second Case:
    - Speed of disc (S2) = N2 / t2 = 1542 revolutions / 4 hours = 385.5 revolutions/hour

    Calculating Power Factor:
    - Since the energy consumed is the same in both cases, the power factor can be calculated using the speed of the meter disc.
    - Power factor = S2 / S1 = 385.5 / 396 ≈ 0.972
    Therefore, the power factor of the load would be between 0.62 and 0.68.
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    A 220 V, single phase, watt hour meter has a constant load of 4 A pass...
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    A 220 V, single phase, watt hour meter has a constant load of 4 A passing through it for 6 hour at unity power factor. The meter disc makes 2376 revaluation during this period. If the number of revolution made by the meter are 1542 when operating at 220 V and 6 A for 4 hours, then power factor of the load would beCorrect answer is between '0.62,0.68'. Can you explain this answer?
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    A 220 V, single phase, watt hour meter has a constant load of 4 A passing through it for 6 hour at unity power factor. The meter disc makes 2376 revaluation during this period. If the number of revolution made by the meter are 1542 when operating at 220 V and 6 A for 4 hours, then power factor of the load would beCorrect answer is between '0.62,0.68'. 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 A 220 V, single phase, watt hour meter has a constant load of 4 A passing through it for 6 hour at unity power factor. The meter disc makes 2376 revaluation during this period. If the number of revolution made by the meter are 1542 when operating at 220 V and 6 A for 4 hours, then power factor of the load would beCorrect answer is between '0.62,0.68'. 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 A 220 V, single phase, watt hour meter has a constant load of 4 A passing through it for 6 hour at unity power factor. The meter disc makes 2376 revaluation during this period. If the number of revolution made by the meter are 1542 when operating at 220 V and 6 A for 4 hours, then power factor of the load would beCorrect answer is between '0.62,0.68'. Can you explain this answer?.
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