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GCSE Physics: kilowatt-hour (kWh)
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Watt (W) electrical unit - RapidTables
WebFeb 14, 2014 · Follow BBC Bitesize @bbcbitesize For all of us grown-ups trying our best to help school-aged kids! Parents, carers, teachers, educators, schools, groups... Fun, news, … The amount of electrical energy transferred to an appliance depends on its power, and on the length of time it is switched on for. The kilowatt hour (kWh) is used as a unit of energy for calculating electricity bills. This equation shows the relationship between energy transferred, power and time, \[\text{energy … See more Electricity meters measure the number of units of electricity used in a home or other building. The more units used, the greater the cost. This is how the cost … See more An electric fire needs 2 kW. It is switched on for 3 hours. If each kWh costs 15p, how much does it cost to run the fire? Units used (kWh) = 2 × 3 = 6 kWh Cost = 6 × … See more The energy in joules is equal to the power in watts × time in seconds. \[\text{energy (J)}={\text{power (W)}}\times{\text{time (s)}}\] Question 1. 1 kWh is … See more WebDivested: Worldwide Media 5. Notes. 1 50.01% owned by the BBC, 49.99% owned by AMC Networks. 2 80% owned by Corus Entertainment, 20% owned by the BBC. 3 Co-owned by Sony Pictures Networks India. 4 Co-owned by ITV plc. 5 Formerly a joint venture with The Times Group, which is now its sole owner. BBC Radio. margaret whittemore obituary