Question

How much electrical energy is used by the river cooker oven rated 800 W ,230 V is switched on for 30 minutes

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Answer 1

E = 1440 kJ

Step-by-step explanation:

It is given that,

Power of a cooker oven is 800 W

Voltage at which it is operated is 230 V

Time, t = 30 minutes = 1800 seconds

We need to find the electrical energy used by the cooker oven. The product of power and time is equal to the energy consumed. So,

`E=P* t\\\\E=800\ W* 1800\ s\\\\E=1440000\ J\\\\\text{or}\\\\E=1440\ kJ`

So, electrical energy of 1440 kJ is consumed by the cooker oven.