An electric bulb is rated at 200volts and 100watts calculate the energy consumed by 3such bulbs if they glow continuously for 10 hours for complete month of November calculate the total cost if rate is 6.5rupees/unit
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bulb 200V,100V
bulbs 3
bulbs 600v,300v
time 10 hrs
total cost 6.5rs
1kwhm 600*300*10/1000
1800000/1000
1800
1800*6.5
rs 11,900
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