Question

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

Answer 1

$\huge\color{blue}{ \colorbox{pink}{\colorbox{white} {ANSWER}}}$

With the help of the expression, energy consumed by an electric heater will be

obtained,

P = T

Where,

The power rating of the heater,

P = 500 W = 1.5 power unit Time that the heater has operated,

T = ten 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 10h is 15 kWh.

Answer 2

Explanation:

P = T

Where,

The power rating of the heater,

P = 500 W = 1.5 power unit Time that the heater has operated,

T = ten 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 10h is 15 kWh.