Question

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

Answer 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

$P= \frac{W}{T }$

we also Know that

Work done = Energy consumed by the heater.

So,

$power = \frac{Energy \: consumed \: by \: the \: heater}{time}$

$energy \: consumed = power \times time$

$= > Energy \: consumed = 1500 × 10$

$= > Energy \: consumed = 15000 W$

$= > Energy \: consumed = 15kWh$

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