Question

how much electric energy is consumed by an electric heater of 550 watt if it is switched on for 15 minutes?

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Answer 1

Answer:

An electric heater of power 1000 watt is joined to electric mains of 250 volt. Calculate:(i) Electric current flowing through heater(ii) Resistance of

Answer 2

Answer:

ENERGY = POWER X TIME

E = P X T (Time is second)

So, E = 550 X 900s (Time in second)

RESULT  = 495000 joules

Logic :

E = P X T (WHERE TIME IS IN SECOND)

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