Question

calculate the numner of units of electrical energy if 28.w used by a vaccum cleaner for 5 hour​

Answer 1

Answer:

In our sample, nearly all vacuums run around 1,000 watts, which if used over the course of an hour becomes 1,000 watt-hours or one kilowatt-hour (kWh). Vacuuming with a-12 amp vacuum converts to 1440 watts, or 1.44 kWh.