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an electrical iron box having power 400w is operated in 10hours. what will be the energy consumed by the device in commercial unit?

Respuesta :

Answer:

4 kWh or 4 units

Explanation:

energy = power × time

            = 400 W×  10 h

            = 4000 Wh

           =( 4000/ 1000 )  kWh

            = 4 kWh

             = 4 commercial units

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