Question

1500 watt heater is on for 3 hours ,it will consume

Answer 1

Since Power = Energy / Time

1500 W = Energy / 3hr

1.5Kw * 3hr = Energy

4.5 KW h = Energy

Hope it's helpful to u.

Answer 2

1500 watt heater is on for 3 hours, it will consume about 4.5 kilowatt.

Explanation:

Here we are given in this question that the power that is consumed by the bulb is 1500 watts.

And we also know the formula that we used to calculate the power that is being used by electrical appliances.

So we shall apply that formula here which says power consumed by the electric appliance is the energy that is being utilised in every hour.

Since the bulb has been working for 3 hours.

Hence the total amount of power that is being utilised by the bulb would be,

= 1500 watts $\times$ 3 hours

= 4500 Watts

or = 4.5 kilowatt.

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