Question

An electric heater is rated 1500W .how much energy does it use in 10 hours?​

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 Time for which the heater has operated, T= 10 h Work done = Energy consumed by the heater Therefore, energy consumed = Power — Time = 1.5 — 10 = 15 kWh Hence, the energy consumed by the heater in 10 h is 15 kWh.

Answer 2

Answer:

Given:

• An electric heater is rated 1500W.

Find:

• How much energy does it use in 10 hours?

Using formula:

★ ${\sf{\underline{\boxed{\orange{\sf{Energy = Power \times Time}}}}}}$

Note:

→ $\sf{Power = \dfrac{1500}{1000}}$

→ $\sf{1.5 \:kw}$

Calculations:

→ $\sf{1.5 \times 10}$

→ ${\sf{\underline{\boxed{\red{\sf{15 \: kwh}}}}}}$