Ohm’s Law and Electrical Power Practice



Ohm’s Law and Electrical Power Practice

Ohm’s Law Practice

1. What voltage produces a current of 50 amps with a resistance of 20 ohms?

2. What voltage produces a current of 500 amps with a resistance of 50 ohms?

3. What is the current produced with a 9-volt battery through a resistance of 100 ohms?

4. If the potential difference is 120 volts and the resistance is 50 ohms, what is the current?

5. What resistance would produce a current of 200 amperes with a potential difference of 2000 volts?

6. What is the resistance of a light-bulb if a 120-volt potential difference produces a current of 0.8 amperes?

7. What is the potential difference if a resistance of 25 ohms produces a current of 250 amperes?

Electrical Power

8. How much electrical power is produced with a voltage of 20 and a wire carrying 30 amps of current?

9. The potential difference of 15 volts is going through a wire with a current of 50 amps. How much electrical power is produced?

10. The electrical power produced from a 20 amp current is 4 watts. What is the potential difference?

11. A 9-volt battery is producing an electrical power of 5 watts, what is the current going through the wire attached?

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