Class X Sciences [papers from previous years] Calculate the electric – InterviewSolution

1.	Class X Sciences [papers from previous years] Calculate the electric energy consumed by a 1200 W toaster in 20 minutes.
Answer» CONSUMED = Power of the gadget/equipment * time duration used = 1200 W * 20 * 60 sec = 1440000 Joules = 1, 440 KJ = 1, 440 / 3600 kW-h = 0.40 kWh or units

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