1. Which is true?
- A 50kW appliance transfers 5000 J in 1 second p
- A 5kW appliance transfers 5000 J in 1 second
- A 5kW appliance transfers 500 J in 1 second
- kW = J x 10
1 of 10
Other questions in this quiz
2. A KILOWATT-HOUR is the amount of electrical energy is used by a 1kW appliance left on for 1 Hour.
3. 'Kilowatt-hours' mean the same as 'units'
4. Which formula is correct - Cost =
- No. of Units x Price of Units
- No. of Units x 2(Price of Units)
5. Power is usually measure in what?
- Just joules (j)
- Watts (w) or Kilowatts (kW)
- Just watts (w)