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 8 A and has resistance 6 Ω. Use V = IR to find the voltage.
I = 8 A · R = 6 Ω
2. A resistor carries 8 A and has resistance 26 Ω. Use V = IR to find the voltage.
I = 8 A · R = 26 Ω
3. A resistor carries 6 A and has resistance 44 Ω. Use V = IR to find the voltage.
I = 6 A · R = 44 Ω
4. A resistor carries 6 A and has resistance 43 Ω. Use V = IR to find the voltage.
I = 6 A · R = 43 Ω
5. A resistor carries 2 A and has resistance 15 Ω. Use V = IR to find the voltage.
I = 2 A · R = 15 Ω
6. A resistor carries 11 A and has resistance 17 Ω. Use V = IR to find the voltage.
I = 11 A · R = 17 Ω
7. A resistor carries 6 A and has resistance 16 Ω. Use V = IR to find the voltage.
I = 6 A · R = 16 Ω
8. A resistor carries 8 A and has resistance 40 Ω. Use V = IR to find the voltage.
I = 8 A · R = 40 Ω
9. A resistor carries 4 A and has resistance 31 Ω. Use V = IR to find the voltage.
I = 4 A · R = 31 Ω
10. A resistor carries 8 A and has resistance 49 Ω. Use V = IR to find the voltage.
I = 8 A · R = 49 Ω
11. A resistor carries 2 A and has resistance 26 Ω. Use V = IR to find the voltage.
I = 2 A · R = 26 Ω
12. A resistor carries 11 A and has resistance 28 Ω. Use V = IR to find the voltage.
I = 11 A · R = 28 Ω

12 questions · Seed 46 · 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 8 A and has resistance 6 Ω. Use V = IR to find the voltage.
48 V
V = I × R = 8 × 6 = 48 V.
2. A resistor carries 8 A and has resistance 26 Ω. Use V = IR to find the voltage.
208 V
V = I × R = 8 × 26 = 208 V.
3. A resistor carries 6 A and has resistance 44 Ω. Use V = IR to find the voltage.
264 V
V = I × R = 6 × 44 = 264 V.
4. A resistor carries 6 A and has resistance 43 Ω. Use V = IR to find the voltage.
258 V
V = I × R = 6 × 43 = 258 V.
5. A resistor carries 2 A and has resistance 15 Ω. Use V = IR to find the voltage.
30 V
V = I × R = 2 × 15 = 30 V.
6. A resistor carries 11 A and has resistance 17 Ω. Use V = IR to find the voltage.
187 V
V = I × R = 11 × 17 = 187 V.
7. A resistor carries 6 A and has resistance 16 Ω. Use V = IR to find the voltage.
96 V
V = I × R = 6 × 16 = 96 V.
8. A resistor carries 8 A and has resistance 40 Ω. Use V = IR to find the voltage.
320 V
V = I × R = 8 × 40 = 320 V.
9. A resistor carries 4 A and has resistance 31 Ω. Use V = IR to find the voltage.
124 V
V = I × R = 4 × 31 = 124 V.
10. A resistor carries 8 A and has resistance 49 Ω. Use V = IR to find the voltage.
392 V
V = I × R = 8 × 49 = 392 V.
11. A resistor carries 2 A and has resistance 26 Ω. Use V = IR to find the voltage.
52 V
V = I × R = 2 × 26 = 52 V.
12. A resistor carries 11 A and has resistance 28 Ω. Use V = IR to find the voltage.
308 V
V = I × R = 11 × 28 = 308 V.

12 questions · Seed 46 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Take your time. Show your thinking.

1. A resistor carries 8 A and has resistance 6 Ω. Use V = IR to find the voltage.
I = 8 A · R = 6 Ω
2. A resistor carries 8 A and has resistance 26 Ω. Use V = IR to find the voltage.
I = 8 A · R = 26 Ω
3. A resistor carries 6 A and has resistance 44 Ω. Use V = IR to find the voltage.
I = 6 A · R = 44 Ω
4. A resistor carries 6 A and has resistance 43 Ω. Use V = IR to find the voltage.
I = 6 A · R = 43 Ω
5. A resistor carries 2 A and has resistance 15 Ω. Use V = IR to find the voltage.
I = 2 A · R = 15 Ω
6. A resistor carries 11 A and has resistance 17 Ω. Use V = IR to find the voltage.
I = 11 A · R = 17 Ω
7. A resistor carries 6 A and has resistance 16 Ω. Use V = IR to find the voltage.
I = 6 A · R = 16 Ω
8. A resistor carries 8 A and has resistance 40 Ω. Use V = IR to find the voltage.
I = 8 A · R = 40 Ω
9. A resistor carries 4 A and has resistance 31 Ω. Use V = IR to find the voltage.
I = 4 A · R = 31 Ω
10. A resistor carries 8 A and has resistance 49 Ω. Use V = IR to find the voltage.
I = 8 A · R = 49 Ω
11. A resistor carries 2 A and has resistance 26 Ω. Use V = IR to find the voltage.
I = 2 A · R = 26 Ω
12. A resistor carries 11 A and has resistance 28 Ω. Use V = IR to find the voltage.
I = 11 A · R = 28 Ω

12 questions · Seed 46 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Answers and reasoning. Review before teaching.

1. A resistor carries 8 A and has resistance 6 Ω. Use V = IR to find the voltage.
48 V
V = I × R = 8 × 6 = 48 V.
2. A resistor carries 8 A and has resistance 26 Ω. Use V = IR to find the voltage.
208 V
V = I × R = 8 × 26 = 208 V.
3. A resistor carries 6 A and has resistance 44 Ω. Use V = IR to find the voltage.
264 V
V = I × R = 6 × 44 = 264 V.
4. A resistor carries 6 A and has resistance 43 Ω. Use V = IR to find the voltage.
258 V
V = I × R = 6 × 43 = 258 V.
5. A resistor carries 2 A and has resistance 15 Ω. Use V = IR to find the voltage.
30 V
V = I × R = 2 × 15 = 30 V.
6. A resistor carries 11 A and has resistance 17 Ω. Use V = IR to find the voltage.
187 V
V = I × R = 11 × 17 = 187 V.
7. A resistor carries 6 A and has resistance 16 Ω. Use V = IR to find the voltage.
96 V
V = I × R = 6 × 16 = 96 V.
8. A resistor carries 8 A and has resistance 40 Ω. Use V = IR to find the voltage.
320 V
V = I × R = 8 × 40 = 320 V.
9. A resistor carries 4 A and has resistance 31 Ω. Use V = IR to find the voltage.
124 V
V = I × R = 4 × 31 = 124 V.
10. A resistor carries 8 A and has resistance 49 Ω. Use V = IR to find the voltage.
392 V
V = I × R = 8 × 49 = 392 V.
11. A resistor carries 2 A and has resistance 26 Ω. Use V = IR to find the voltage.
52 V
V = I × R = 2 × 26 = 52 V.
12. A resistor carries 11 A and has resistance 28 Ω. Use V = IR to find the voltage.
308 V
V = I × R = 11 × 28 = 308 V.

12 questions · Seed 46 · Age guidance, not curriculum certification