2) An electric bulb of 60 W is used for 6 hours per day. Calculate the charges of usage of electric bulb per day,if it costs Rs 2.50 per joule.
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An electric bulb of 60W what is used for 6 hours per day calculate the unit of energy consumed in 1 day by the bulb.
Power = 60 W.
= 0.06 KW.
Time = 6 h.
Formula used => Energy = power × time taken .
=> 0.06 Kw × 6h.
=> 0.36 KWH.
=> 0.36 × 2.50 × 100
=> 90 rupees
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