In case of power failure, a battery is used to light a bulb, run a fan, and heat an electric iron (each of 100 W rating) for 10 minutes. In this process, the work done and heat supplied by the battery is given by :
  • a)
    W=0, 0 = 0
  • b)
    W= 180 kJ, Q = 0
  • c)
    W= 60 kJ, Q= 120 kJ
  • d)
    None of these
Correct answer is option 'B'. Can you explain this answer?

SSC Question

Engineers Adda
May 26, 2021
Work = electrical work
=3×100W
=3×100×10×60J
Work (W)=180kJ
Heat transfer, Q=0 (no heat transfer from/to battery)

This discussion on In case of power failure, a battery is used to light a bulb, run a fan, and heat an electric iron (each of 100 W rating) for 10 minutes. In this process, the work done and heat supplied by the battery is given by :a)W=0, 0 = 0b)W= 180 kJ, Q = 0c)W= 60 kJ, Q= 120 kJd)None of theseCorrect answer is option 'B'. Can you explain this answer? is done on EduRev Study Group by SSC Students. The Questions and Answers of In case of power failure, a battery is used to light a bulb, run a fan, and heat an electric iron (each of 100 W rating) for 10 minutes. In this process, the work done and heat supplied by the battery is given by :a)W=0, 0 = 0b)W= 180 kJ, Q = 0c)W= 60 kJ, Q= 120 kJd)None of theseCorrect answer is option 'B'. Can you explain this answer? are solved by group of students and teacher of SSC, which is also the largest student community of SSC. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for SSC on EduRev and even discuss your questions like In case of power failure, a battery is used to light a bulb, run a fan, and heat an electric iron (each of 100 W rating) for 10 minutes. In this process, the work done and heat supplied by the battery is given by :a)W=0, 0 = 0b)W= 180 kJ, Q = 0c)W= 60 kJ, Q= 120 kJd)None of theseCorrect answer is option 'B'. Can you explain this answer? over here on EduRev! Apart from being the largest SSC community, EduRev has the largest solved Question bank for SSC.
This discussion on In case of power failure, a battery is used to light a bulb, run a fan, and heat an electric iron (each of 100 W rating) for 10 minutes. In this process, the work done and heat supplied by the battery is given by :a)W=0, 0 = 0b)W= 180 kJ, Q = 0c)W= 60 kJ, Q= 120 kJd)None of theseCorrect answer is option 'B'. Can you explain this answer? is done on EduRev Study Group by SSC Students. The Questions and Answers of In case of power failure, a battery is used to light a bulb, run a fan, and heat an electric iron (each of 100 W rating) for 10 minutes. In this process, the work done and heat supplied by the battery is given by :a)W=0, 0 = 0b)W= 180 kJ, Q = 0c)W= 60 kJ, Q= 120 kJd)None of theseCorrect answer is option 'B'. Can you explain this answer? are solved by group of students and teacher of SSC, which is also the largest student community of SSC. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for SSC on EduRev and even discuss your questions like In case of power failure, a battery is used to light a bulb, run a fan, and heat an electric iron (each of 100 W rating) for 10 minutes. In this process, the work done and heat supplied by the battery is given by :a)W=0, 0 = 0b)W= 180 kJ, Q = 0c)W= 60 kJ, Q= 120 kJd)None of theseCorrect answer is option 'B'. Can you explain this answer? over here on EduRev! Apart from being the largest SSC community, EduRev has the largest solved Question bank for SSC.