Exercise

If a bulb uses 60 watts of power and runs on 120 volts, what is the current?

• 0.5A

• 2A

• 1A

• 3A

A circuit has a resistance of 5 ohms and a current of 2 amperes. What is the voltage?

• 7V

• 10V

• 12V

• 3V

A device operates at 10 volts and uses a current of 3 amperes. How much power does it consume?

• 13W

• 33W

• 30W

• 3.3W

If a circuit has a voltage of 15 volts and a resistance of 3 ohms, what is the current?

• 5A

• 3A

• 2A

• 7A

A circuit has a current of 4 amperes and a voltage of 20 volts. What is the resistance?

• 5Ω

• 8Ω

• 4Ω

• • 10Ω