wikiHow Calculating Wattage Practice Problems 1. A circuit has a voltage of 24 volts and a current of 2 amps. What is the wattage? 2. A device draws 0.5 amps of current at a voltage of 120 volts. What is the wattage? 3. A power tool has a voltage of 240 volts and draws 5 amps of current. What is the wattage? 4. A light bulb has a voltage of 120 volts and draws 0.5 amps of current. What is the wattage? 5. A motor has a voltage of 12 volts and draws 1.5 amps of current. What is the wattage? 6. A circuit has a voltage of 48 volts and a current of 4 amps. What is the wattage? 7. A device draws 1 amp of current at a voltage of 240 volts. What is the wattage? 8. A power tool has a voltage of 120 volts and draws 8 amps of current. What is the wattage? 9. A light bulb has a voltage of 240 volts and draws 0.25 amps of current. What is the wattage? 10. A motor has a voltage of 36 volts and draws 3 amps of current. What is the wattage? 11. A circuit has a voltage of 120 volts and a current of 10 amps. What is the wattage? 12. A device draws 2 amps of current at a voltage of 12 volts. What is the wattage? 13. A power tool has a voltage of 240 volts and draws 10 amps of current. What is the wattage? 14. A light bulb has a voltage of 36 volts and draws 0.5 amps of current. What is the wattage? 15. A motor has a voltage of 120 volts and draws 2 amps of current. What is the wattage? 16. A circuit has a voltage of 12 volts and a current of 6 amps. What is the wattage? 17. A device draws 0.25 amps of current at a voltage of 240 volts. What is the wattage? 18. A power tool has a voltage of 12 volts and draws 4 amps of current. What is the wattage? 19. A light bulb has a voltage of 48 volts and draws 0.5 amps of current. What is the wattage? 20. A motor has a voltage of 240 volts and draws 2.5 amps of current. What is the wattage? Page