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. A 100W BULB IS OPERATED FOR 8 HOURS DAILY. FIND THE COST OFOPERATING THIS BULB FOR 30 DAYS.ASSUMING THE COST OF ELECTRICITY IS 34PER UNITAns: Rs. 96​

Answer» <html><body><p>tion:Energy = Power*timeEnergy consumed by 100 W <a href="https://interviewquestions.tuteehub.com/tag/bulb-905352" style="font-weight:bold;" target="_blank" title="Click to know more about BULB">BULB</a> <a href="https://interviewquestions.tuteehub.com/tag/per-590802" style="font-weight:bold;" target="_blank" title="Click to know more about PER">PER</a> day = 2∗100 <a href="https://interviewquestions.tuteehub.com/tag/wh-1452214" style="font-weight:bold;" target="_blank" title="Click to know more about WH">WH</a>                                                                                     = 0.2 kWhEnergy consumed by 40 W bulbs per day = 4∗40∗4 Wh                                                                      = 0.64 kWhTotal energy consumed per day = 0.2 + 0.64 kWh                                                   = 0.84 kWh <a href="https://interviewquestions.tuteehub.com/tag/therefore-706901" style="font-weight:bold;" target="_blank" title="Click to know more about THEREFORE">THEREFORE</a>, the energy consumed in 30 days = 30∗0.84 kWh                                                                                    = 25.2 kWh</p></body></html>


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