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Ohm's law

Grade 10 math · Fieldbook Learning

Name ______________________ Date __________

V = I × R.

  1. A 12 Ω resistor is connected to 60 V. What current flows, in amperes?
  2. A current of 1 A flows through a 13 Ω resistor. What is the voltage across it, in volts?
  3. 48 V across a resistor drives a current of 4 A. What is its resistance, in ohms?
  4. A current of 4 A flows through a 2 Ω resistor. What is the voltage across it, in volts?
  5. A 13 Ω resistor is connected to 65 V. What current flows, in amperes?
  6. A current of 1 A flows through a 16 Ω resistor. What is the voltage across it, in volts?
  7. A 11 Ω resistor is connected to 66 V. What current flows, in amperes?
  8. A 15 Ω resistor is connected to 30 V. What current flows, in amperes?
  9. A current of 3 A flows through a 12 Ω resistor. What is the voltage across it, in volts?
  10. 18 V across a resistor drives a current of 1 A. What is its resistance, in ohms?
  11. A current of 2 A flows through a 15 Ω resistor. What is the voltage across it, in volts?
  12. A current of 4 A flows through a 3 Ω resistor. What is the voltage across it, in volts?
  13. A current of 5 A flows through a 12 Ω resistor. What is the voltage across it, in volts?
  14. A current of 5 A flows through a 5 Ω resistor. What is the voltage across it, in volts?
  15. A current of 4 A flows through a 14 Ω resistor. What is the voltage across it, in volts?
  16. A current of 2 A flows through a 2 Ω resistor. What is the voltage across it, in volts?
  17. A current of 3 A flows through a 8 Ω resistor. What is the voltage across it, in volts?
  18. 15 V across a resistor drives a current of 1 A. What is its resistance, in ohms?
  19. 8 V across a resistor drives a current of 4 A. What is its resistance, in ohms?
  20. A current of 5 A flows through a 20 Ω resistor. What is the voltage across it, in volts?
More free practice: fieldbooklearning.com/practice/grade-10/ohm-s-law/

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Answer key: Ohm's law

  1. 5 A
  2. 13 V
  3. 12 Ω
  4. 8 V
  5. 5 A
  6. 16 V
  7. 6 A
  8. 2 A
  9. 36 V
  10. 18 Ω
  11. 30 V
  12. 12 V
  13. 60 V
  14. 25 V
  15. 56 V
  16. 4 V
  17. 24 V
  18. 15 Ω
  19. 2 Ω
  20. 100 V