An electric press is rated 750 W ,230 V .Calculate the electrical energy consumed by the press in 16 hours.
An electric iron of power 1.5 kW is used for 30 minute.to press the clothes Calculate the electrical energy consumed in (a) kilowatt hour (b) joule.
What will be the energy consumed in 3 hours if an electric heater is rated at 1500 watt?