Question

what are the various energy transformation that occur when you sre riding a bicycle i) an electric heater is rated 1500 . how much energy does it use in 70 hours​

Answer 1

Answer:

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Explanation:

$Power \: of \: the \: heater P =1500 W = \: 1.5 kW</p><p></p><p> \\ Time \: taken \: T = 70 h</p><p></p><p> \\ Energy \: consumed \: by \: an \: electric \: heater \: can \: be \: obtained \: with \: the \: help \: of \: the \: expression,</p><p></p><p> \\ Power = \frac{energy \: consumed}{time} </p><p></p><p> \\ Therefore \: , \: Energy \: consumed = Power × Time</p><p></p><p>= 1.5 × 70 = 105 \: kwh</p><p></p><p> \\ Hence, \: the \: energy \: consumed \: by \: the \: heater in \: 70 h is 105 kWh.</p><p></p><p>$