ScienceAges 13-15

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 13-15

Take your time. Show your thinking.

1. A resistor carries 10 A and has resistance 41 Ω. Use V = IR to find the voltage.
I = 10 A · R = 41 Ω
2. A resistor carries 10 A and has resistance 24 Ω. Use V = IR to find the voltage.
I = 10 A · R = 24 Ω
3. A resistor carries 10 A and has resistance 27 Ω. Use V = IR to find the voltage.
I = 10 A · R = 27 Ω
4. A resistor carries 1 A and has resistance 47 Ω. Use V = IR to find the voltage.
I = 1 A · R = 47 Ω
5. A resistor carries 4 A and has resistance 24 Ω. Use V = IR to find the voltage.
I = 4 A · R = 24 Ω
6. A resistor carries 11 A and has resistance 49 Ω. Use V = IR to find the voltage.
I = 11 A · R = 49 Ω
7. A resistor carries 7 A and has resistance 38 Ω. Use V = IR to find the voltage.
I = 7 A · R = 38 Ω
8. A resistor carries 4 A and has resistance 17 Ω. Use V = IR to find the voltage.
I = 4 A · R = 17 Ω
9. A resistor carries 3 A and has resistance 9 Ω. Use V = IR to find the voltage.
I = 3 A · R = 9 Ω
10. A resistor carries 12 A and has resistance 43 Ω. Use V = IR to find the voltage.
I = 12 A · R = 43 Ω
11. A resistor carries 11 A and has resistance 6 Ω. Use V = IR to find the voltage.
I = 11 A · R = 6 Ω
12. A resistor carries 3 A and has resistance 47 Ω. Use V = IR to find the voltage.
I = 3 A · R = 47 Ω

12 questions · Seed 51 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 13-15

Answers and reasoning. Review before teaching.

1. A resistor carries 10 A and has resistance 41 Ω. Use V = IR to find the voltage.
410 V
V = I × R = 10 × 41 = 410 V.
2. A resistor carries 10 A and has resistance 24 Ω. Use V = IR to find the voltage.
240 V
V = I × R = 10 × 24 = 240 V.
3. A resistor carries 10 A and has resistance 27 Ω. Use V = IR to find the voltage.
270 V
V = I × R = 10 × 27 = 270 V.
4. A resistor carries 1 A and has resistance 47 Ω. Use V = IR to find the voltage.
47 V
V = I × R = 1 × 47 = 47 V.
5. A resistor carries 4 A and has resistance 24 Ω. Use V = IR to find the voltage.
96 V
V = I × R = 4 × 24 = 96 V.
6. A resistor carries 11 A and has resistance 49 Ω. Use V = IR to find the voltage.
539 V
V = I × R = 11 × 49 = 539 V.
7. A resistor carries 7 A and has resistance 38 Ω. Use V = IR to find the voltage.
266 V
V = I × R = 7 × 38 = 266 V.
8. A resistor carries 4 A and has resistance 17 Ω. Use V = IR to find the voltage.
68 V
V = I × R = 4 × 17 = 68 V.
9. A resistor carries 3 A and has resistance 9 Ω. Use V = IR to find the voltage.
27 V
V = I × R = 3 × 9 = 27 V.
10. A resistor carries 12 A and has resistance 43 Ω. Use V = IR to find the voltage.
516 V
V = I × R = 12 × 43 = 516 V.
11. A resistor carries 11 A and has resistance 6 Ω. Use V = IR to find the voltage.
66 V
V = I × R = 11 × 6 = 66 V.
12. A resistor carries 3 A and has resistance 47 Ω. Use V = IR to find the voltage.
141 V
V = I × R = 3 × 47 = 141 V.

12 questions · Seed 51 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 13-15

Take your time. Show your thinking.

1. A resistor carries 10 A and has resistance 41 Ω. Use V = IR to find the voltage.
I = 10 A · R = 41 Ω
2. A resistor carries 10 A and has resistance 24 Ω. Use V = IR to find the voltage.
I = 10 A · R = 24 Ω
3. A resistor carries 10 A and has resistance 27 Ω. Use V = IR to find the voltage.
I = 10 A · R = 27 Ω
4. A resistor carries 1 A and has resistance 47 Ω. Use V = IR to find the voltage.
I = 1 A · R = 47 Ω
5. A resistor carries 4 A and has resistance 24 Ω. Use V = IR to find the voltage.
I = 4 A · R = 24 Ω
6. A resistor carries 11 A and has resistance 49 Ω. Use V = IR to find the voltage.
I = 11 A · R = 49 Ω
7. A resistor carries 7 A and has resistance 38 Ω. Use V = IR to find the voltage.
I = 7 A · R = 38 Ω
8. A resistor carries 4 A and has resistance 17 Ω. Use V = IR to find the voltage.
I = 4 A · R = 17 Ω
9. A resistor carries 3 A and has resistance 9 Ω. Use V = IR to find the voltage.
I = 3 A · R = 9 Ω
10. A resistor carries 12 A and has resistance 43 Ω. Use V = IR to find the voltage.
I = 12 A · R = 43 Ω
11. A resistor carries 11 A and has resistance 6 Ω. Use V = IR to find the voltage.
I = 11 A · R = 6 Ω
12. A resistor carries 3 A and has resistance 47 Ω. Use V = IR to find the voltage.
I = 3 A · R = 47 Ω

12 questions · Seed 51 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 13-15

Answers and reasoning. Review before teaching.

1. A resistor carries 10 A and has resistance 41 Ω. Use V = IR to find the voltage.
410 V
V = I × R = 10 × 41 = 410 V.
2. A resistor carries 10 A and has resistance 24 Ω. Use V = IR to find the voltage.
240 V
V = I × R = 10 × 24 = 240 V.
3. A resistor carries 10 A and has resistance 27 Ω. Use V = IR to find the voltage.
270 V
V = I × R = 10 × 27 = 270 V.
4. A resistor carries 1 A and has resistance 47 Ω. Use V = IR to find the voltage.
47 V
V = I × R = 1 × 47 = 47 V.
5. A resistor carries 4 A and has resistance 24 Ω. Use V = IR to find the voltage.
96 V
V = I × R = 4 × 24 = 96 V.
6. A resistor carries 11 A and has resistance 49 Ω. Use V = IR to find the voltage.
539 V
V = I × R = 11 × 49 = 539 V.
7. A resistor carries 7 A and has resistance 38 Ω. Use V = IR to find the voltage.
266 V
V = I × R = 7 × 38 = 266 V.
8. A resistor carries 4 A and has resistance 17 Ω. Use V = IR to find the voltage.
68 V
V = I × R = 4 × 17 = 68 V.
9. A resistor carries 3 A and has resistance 9 Ω. Use V = IR to find the voltage.
27 V
V = I × R = 3 × 9 = 27 V.
10. A resistor carries 12 A and has resistance 43 Ω. Use V = IR to find the voltage.
516 V
V = I × R = 12 × 43 = 516 V.
11. A resistor carries 11 A and has resistance 6 Ω. Use V = IR to find the voltage.
66 V
V = I × R = 11 × 6 = 66 V.
12. A resistor carries 3 A and has resistance 47 Ω. Use V = IR to find the voltage.
141 V
V = I × R = 3 × 47 = 141 V.

12 questions · Seed 51 · Age guidance, not curriculum certification