ScienceAges 16-18

Ohm’s law

Use V = IR to calculate voltage from current and resistance in a simple circuit. Review suitability for your learners before teaching.

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Worksheet StudioPractice pack · Ages 16-18

Take your time. Show your thinking.

1. A resistor carries 1 A and has resistance 17 Ω. Use V = IR to find the voltage.
I = 1 A · R = 17 Ω
2. A resistor carries 6 A and has resistance 41 Ω. Use V = IR to find the voltage.
I = 6 A · R = 41 Ω
3. A resistor carries 2 A and has resistance 32 Ω. Use V = IR to find the voltage.
I = 2 A · R = 32 Ω
4. A resistor carries 9 A and has resistance 30 Ω. Use V = IR to find the voltage.
I = 9 A · R = 30 Ω
5. A resistor carries 6 A and has resistance 31 Ω. Use V = IR to find the voltage.
I = 6 A · R = 31 Ω
6. A resistor carries 6 A and has resistance 39 Ω. Use V = IR to find the voltage.
I = 6 A · R = 39 Ω
7. A resistor carries 5 A and has resistance 43 Ω. Use V = IR to find the voltage.
I = 5 A · R = 43 Ω
8. A resistor carries 7 A and has resistance 42 Ω. Use V = IR to find the voltage.
I = 7 A · R = 42 Ω
9. A resistor carries 6 A and has resistance 15 Ω. Use V = IR to find the voltage.
I = 6 A · R = 15 Ω
10. A resistor carries 9 A and has resistance 5 Ω. Use V = IR to find the voltage.
I = 9 A · R = 5 Ω
11. A resistor carries 1 A and has resistance 2 Ω. Use V = IR to find the voltage.
I = 1 A · R = 2 Ω
12. A resistor carries 7 A and has resistance 4 Ω. Use V = IR to find the voltage.
I = 7 A · R = 4 Ω

12 questions · Seed 104734 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 16-18

Answers and reasoning. Review before teaching.

1. A resistor carries 1 A and has resistance 17 Ω. Use V = IR to find the voltage.
17 V
V = I × R = 1 × 17 = 17 V.
2. A resistor carries 6 A and has resistance 41 Ω. Use V = IR to find the voltage.
246 V
V = I × R = 6 × 41 = 246 V.
3. A resistor carries 2 A and has resistance 32 Ω. Use V = IR to find the voltage.
64 V
V = I × R = 2 × 32 = 64 V.
4. A resistor carries 9 A and has resistance 30 Ω. Use V = IR to find the voltage.
270 V
V = I × R = 9 × 30 = 270 V.
5. A resistor carries 6 A and has resistance 31 Ω. Use V = IR to find the voltage.
186 V
V = I × R = 6 × 31 = 186 V.
6. A resistor carries 6 A and has resistance 39 Ω. Use V = IR to find the voltage.
234 V
V = I × R = 6 × 39 = 234 V.
7. A resistor carries 5 A and has resistance 43 Ω. Use V = IR to find the voltage.
215 V
V = I × R = 5 × 43 = 215 V.
8. A resistor carries 7 A and has resistance 42 Ω. Use V = IR to find the voltage.
294 V
V = I × R = 7 × 42 = 294 V.
9. A resistor carries 6 A and has resistance 15 Ω. Use V = IR to find the voltage.
90 V
V = I × R = 6 × 15 = 90 V.
10. A resistor carries 9 A and has resistance 5 Ω. Use V = IR to find the voltage.
45 V
V = I × R = 9 × 5 = 45 V.
11. A resistor carries 1 A and has resistance 2 Ω. Use V = IR to find the voltage.
2 V
V = I × R = 1 × 2 = 2 V.
12. A resistor carries 7 A and has resistance 4 Ω. Use V = IR to find the voltage.
28 V
V = I × R = 7 × 4 = 28 V.

12 questions · Seed 104734 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Take your time. Show your thinking.

1. A resistor carries 1 A and has resistance 17 Ω. Use V = IR to find the voltage.
I = 1 A · R = 17 Ω
2. A resistor carries 6 A and has resistance 41 Ω. Use V = IR to find the voltage.
I = 6 A · R = 41 Ω
3. A resistor carries 2 A and has resistance 32 Ω. Use V = IR to find the voltage.
I = 2 A · R = 32 Ω
4. A resistor carries 9 A and has resistance 30 Ω. Use V = IR to find the voltage.
I = 9 A · R = 30 Ω
5. A resistor carries 6 A and has resistance 31 Ω. Use V = IR to find the voltage.
I = 6 A · R = 31 Ω
6. A resistor carries 6 A and has resistance 39 Ω. Use V = IR to find the voltage.
I = 6 A · R = 39 Ω
7. A resistor carries 5 A and has resistance 43 Ω. Use V = IR to find the voltage.
I = 5 A · R = 43 Ω
8. A resistor carries 7 A and has resistance 42 Ω. Use V = IR to find the voltage.
I = 7 A · R = 42 Ω
9. A resistor carries 6 A and has resistance 15 Ω. Use V = IR to find the voltage.
I = 6 A · R = 15 Ω
10. A resistor carries 9 A and has resistance 5 Ω. Use V = IR to find the voltage.
I = 9 A · R = 5 Ω
11. A resistor carries 1 A and has resistance 2 Ω. Use V = IR to find the voltage.
I = 1 A · R = 2 Ω
12. A resistor carries 7 A and has resistance 4 Ω. Use V = IR to find the voltage.
I = 7 A · R = 4 Ω

12 questions · Seed 104734 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Answers and reasoning. Review before teaching.

1. A resistor carries 1 A and has resistance 17 Ω. Use V = IR to find the voltage.
17 V
V = I × R = 1 × 17 = 17 V.
2. A resistor carries 6 A and has resistance 41 Ω. Use V = IR to find the voltage.
246 V
V = I × R = 6 × 41 = 246 V.
3. A resistor carries 2 A and has resistance 32 Ω. Use V = IR to find the voltage.
64 V
V = I × R = 2 × 32 = 64 V.
4. A resistor carries 9 A and has resistance 30 Ω. Use V = IR to find the voltage.
270 V
V = I × R = 9 × 30 = 270 V.
5. A resistor carries 6 A and has resistance 31 Ω. Use V = IR to find the voltage.
186 V
V = I × R = 6 × 31 = 186 V.
6. A resistor carries 6 A and has resistance 39 Ω. Use V = IR to find the voltage.
234 V
V = I × R = 6 × 39 = 234 V.
7. A resistor carries 5 A and has resistance 43 Ω. Use V = IR to find the voltage.
215 V
V = I × R = 5 × 43 = 215 V.
8. A resistor carries 7 A and has resistance 42 Ω. Use V = IR to find the voltage.
294 V
V = I × R = 7 × 42 = 294 V.
9. A resistor carries 6 A and has resistance 15 Ω. Use V = IR to find the voltage.
90 V
V = I × R = 6 × 15 = 90 V.
10. A resistor carries 9 A and has resistance 5 Ω. Use V = IR to find the voltage.
45 V
V = I × R = 9 × 5 = 45 V.
11. A resistor carries 1 A and has resistance 2 Ω. Use V = IR to find the voltage.
2 V
V = I × R = 1 × 2 = 2 V.
12. A resistor carries 7 A and has resistance 4 Ω. Use V = IR to find the voltage.
28 V
V = I × R = 7 × 4 = 28 V.

12 questions · Seed 104734 · Age guidance, not curriculum certification