Question

why is the electric power of each type electric appliance sifferent ( Eg electric power of electric heatervis around 1500 walts and of fan is around 100 walts
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Answer 1

Answer:

Energy consumed by an electric heater can be obtained with the help of the expression P= W/T.

Where,

Power rating of the heater (P) = 1500

W = 1.5 kW = 1500 W

Time for which the heater has operated (T) = 10 h

Work done = Energy consumed by the heater

∴ Energy consumed = Power × Time

Energy consumed = 1500 × 10

Energy consumed = 15000 W

Hence, the energy consumed by the heater in 10 h is 15 kWh.

Answer 2

$Each \: electrical \: \\ appliance \: has \: its \: own \\ \: switch \: due \: to \: which \\ \: it \: can be \: turned \: on \: or \: turned \: off \\ \: independently, \: without \: affecting \: other \: appliances. \: \\ (iii) Each \: electrical \: appliance \: gets \: the \: same \: voltage \: as \: \\ that \: of \: the \: power \: supply \: line.$