If four 100 W devices are used daily for 2 hours, what will be the electricity bill for 30 days The cost for one unit is 1 rupee.
Hi Jegannathan, daily 4 * 100 * 2 i.e 800 Wh. Or 0.8 kWh
For 30 days 24 kWh. That is 24 units. So cost will be 24 rupee