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CBET Electronics Quiz

Ohm's Law Quiz

Test your understanding of Ohm's Law, voltage, current, resistance, and how circuit behavior changes when one value changes.

This 25-question quiz helps you move beyond memorizing letters and start recognizing what matters in the circuit.

Start the 25-Question Quiz Review Ohm's Law First Voltage Current Resistance
25Practice questions
V = I × RCore formula
CBETElectronics foundation

Before You Start

Ohm's Law connects voltage, current, and resistance. This quiz includes definitions, simple calculations, and circuit behavior questions.

V = I × R
Simple pattern: Voltage pushes, resistance limits, and current changes.
Common mistake: Do not memorize the formula only. Pay attention to what changes first in the question.

Choose the best answer for each question, then submit your quiz to see your score and review cues.

If a calculation question gives voltage and resistance, use I = V ÷ R. If it gives voltage and current, use R = V ÷ I. If it gives current and resistance, use V = I × R.

1. What is the basic Ohm's Law formula?

2. In Ohm's Law, what does V stand for?

3. In Ohm's Law, what does I stand for?

4. In Ohm's Law, what does R stand for?

5. If voltage increases and resistance stays the same, current will usually:

6. If resistance increases and voltage stays the same, current will usually:

7. If resistance decreases and voltage stays the same, current will usually:

8. Which value represents electrical pressure?

9. Which value represents opposition to current flow?

10. Which value represents the flow of electrical charge?

11. If V = 12 volts and R = 6 ohms, what is current?

12. If V = 24 volts and R = 8 ohms, what is current?

13. If I = 2 amps and R = 10 ohms, what is voltage?

14. If V = 100 volts and I = 10 amps, what is resistance?

15. If a device has correct voltage but low current, what may be happening?

16. If resistance is too low, what can happen to current?

17. Why does Ohm's Law help with troubleshooting?

18. Which statement is correct?

19. Which statement is correct?

20. If resistance doubles and voltage stays the same, current will generally:

21. If voltage doubles and resistance stays the same, current will generally:

22. Which formula solves for current?

23. Which formula solves for resistance?

24. Which formula solves for voltage?

25. What is the best way to understand Ohm's Law?

Your Result

What to Notice First

These cues help you move beyond memorizing answers and start recognizing what matters in the question.

Question 5: The first cue is that voltage increased while resistance stayed the same. More voltage means more electrical push, so current increases.
Question 6: The first cue is that resistance increased. Higher resistance makes current flow harder, so current decreases.
Question 7: The first cue is that resistance decreased. Lower resistance allows more current to flow.
Question 11: The first cue is that the question gives voltage and resistance. That means you solve for current using I = V ÷ R.
Question 15: The first cue is that voltage is correct but current is low. That points toward resistance being too high somewhere in the circuit.
Question 16: The first cue is that resistance is too low. Low resistance can allow too much current to flow.
Question 20: The first cue is that resistance doubled while voltage stayed the same. More resistance means less current.
Question 21: The first cue is that voltage doubled while resistance stayed the same. More voltage means more current.
Review Ohm's Law Review Voltage vs Current vs Resistance Try Voltage Current Resistance Quiz CBET Electronics Practice Browse All Practice Tools

Best Study Path After This Quiz

This quiz pairs directly with the Ohm's Law guide. After this, keep moving through the electronics foundation path.

1. What Is Ohm's Law? Review the formula, examples, and behavior rules. 2. Voltage Current Resistance Review the foundation behind the formula. 3. Power Supply Basics See how this applies in real equipment. 4. CBET Electronics Practice Practice mixed electronics concepts.

Related Electronics Guides

Continue building your CBET electronics foundation with these related MedSkillBuilder pages.

What Is Ohm's Law? Voltage Current Resistance Voltage Current Resistance Quiz Basic Electronics Explained AC vs DC Current What Is a Diode? What Does a Rectifier Do? What Does a Capacitor Do? Power Supply Basics How to Use a Multimeter CBET Electronics Practice Browse All Practice Tools

Ready for mixed electronics practice?

After Ohm's Law, move into broader CBET electronics questions covering power supplies, AC/DC, components, and troubleshooting.

Start CBET Electronics Practice → Open Free CBET Practice Test

For learning purposes only. Always ensure equipment is powered off and properly discharged before testing.