wikiHow Calculating Wattage Practice Answers 1. Wattage = 24 volts x 2 amps = 48 watts 2. Wattage = 120 volts x 0.5 amps = 60 watts 3. Wattage = 240 volts x 5 amps = 1200 watts 4. Wattage = 120 volts x 0.5 amps = 60 watts 5. Wattage = 12 volts x 1.5 amps = 18 watts 6. Wattage = 48 volts x 4 amps = 192 watts 7. Wattage = 240 volts x 1 amp = 240 watts 8. Wattage = 120 volts x 8 amps = 960 watts 9. Wattage = 240 volts x 0.25 amps = 60 watts 10. Wattage = 36 volts x 3 amps = 108 watts 11. Wattage = 120 volts x 10 amps = 1200 watts 12. Wattage = 12 volts x 2 amps = 24 watts 13. Wattage = 240 volts x 10 amps = 2400 watts 14. Wattage = 36 volts x 0.5 amps = 18 watts 15. Wattage = 120 volts x 2 amps = 240 watts 16. Wattage = 12 volts x 6 amps = 72 watts 17. Wattage = 240 volts x 0.25 amps = 60 watts 18. Wattage = 12 volts x 4 amps = 48 watts 19. Wattage = 48 volts x 0.5 amps = 24 watts 20. Wattage = 240 volts x 2.5 amps = 600 watts Page