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In an electric appliance, current flowing through a 300 V source is 5 A. Calculate the time taken by the device when the energy used is 3750 Wh. 
  • a)
    8640 seconds
  • b)
    9000 seconds
  • c)
    9360 seconds
  • d)
    9720 seconds
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In an electric appliance, current flowing through a 300 V source is 5 ...
Power = current × voltage = 5 × 300 = 1500 W
Work = Power × time = 3750/1500 = 2.5 hrs = 2.5 × 3600 = 9000 seconds
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In an electric appliance, current flowing through a 300 V source is 5 A. Calculate the time taken by the device when the energy used is 3750 Wh.a)8640 secondsb)9000 secondsc)9360 secondsd)9720 secondsCorrect answer is option 'B'. Can you explain this answer?
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