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An electric bulb of 60 W is used for 6 h...

An electric bulb of 60 W is used for 6 h per day. Calculate the 'units' of energy consumed in one day by the bulb.

Text Solution

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Power of electric bulb = `60W=0.06kW`
Time used `t=6h`
Energy = power `xx` time taken
`=0.06kWxx6h`
`=0.36kWh=0.36` .units.
The energy consumed by the bulb is 0.36 .units..
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KUMAR PRAKASHAN-WORK AND ENERGY -QUESTION & ANSWER (TEXUTAL EXAMPLES/NUMERICALS)
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  8. A boy of mass 50 kg runs up a staircase of 45 steps in 9 s. If the hei...

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  9. An electric bulb of 60 W is used for 6 h per day. Calculate the 'units...

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  10. A force of 5 N is acting on an object. The object is displaced through...

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  11. A porter lifts a luggage of 15 kg from the ground and puts it on his h...

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  12. An object of mass 15kg is moving with a uniform velocity of 4ms^(-1). ...

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  13. What is the work to be done to increase the velocity of a car from 30k...

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  14. Find the energy possessed by an object of mass 10kg when it is at a he...

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  15. An object of mas 12 kg is at a certain height above the ground. If the...

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  16. Two girls, each of weight 400 N climb up a rope through a height of 8 ...

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  17. A boy of mass 50 kg runs up a staircase of 45 steps in 9 s. If the hei...

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  18. An electric bulb of 60 W is used for 6 h per day. Calculate the 'units...

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