Appliances in Home

Two rice cookers were used in a 10 day all night long party; a rice cooker which draws a current from 4A from 220V, and another rice cooker which consumes 659W. The electricity bill comes, and the owner dies in shock. Which rice cooker had caused the increase in the owner's electricity bill?

Enter the exact square root of three for the former. Enter the exact pi for the latter.

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