An electric heater is rated 1500w How much energy does it use in 10 hrs​

2 thoughts on “An electric heater is rated 1500w How much energy does it use in 10 hrs​”

1. Given:–

   • Power rating of the heater (P) = 1500.
   • W = 1.5 kW = 1500 W.

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

   To Find:–

   • Amount Of Energy Used By an Electric Heater in 10 hours.

   Solution:–

   We Know that

   For Obtaining The Energy Consumed by the heater we will use The Expression

   [tex]P= \frac{W}{T }[/tex]

   we also Know that

   Work done = Energy consumed by the heater.

   So,

   [tex]power = \frac{Energy \: consumed \: by \: the \: heater}{time} [/tex]

   [tex]energy \: consumed = power \times time [/tex]

   [tex] = > Energy \: consumed = 1500 × 10[/tex]

   [tex] = > Energy \: consumed = 15000 W[/tex]

   [tex] = > Energy \: consumed = 15kWh [/tex]

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

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2. Answer:

   [tex]\huge\mathtt{\red{\underline{\underline{Answer}}}}[/tex]

   P = 1500 W

   Change in kW

   P = 1.5kW

   Time = 10 hour

   Energy = Power × Time

   = 1.5kW × 10 hour

   = 15 kWh

   = 15 units

   Energy Consumed = 15 units

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