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 4 A and has resistance 24 Ω. Use V = IR to find the voltage.
I = 4 A · R = 24 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 6 A and has resistance 27 Ω. Use V = IR to find the voltage.
I = 6 A · R = 27 Ω
4. A resistor carries 11 A and has resistance 41 Ω. Use V = IR to find the voltage.
I = 11 A · R = 41 Ω
5. A resistor carries 6 A and has resistance 17 Ω. Use V = IR to find the voltage.
I = 6 A · R = 17 Ω
6. A resistor carries 9 A and has resistance 8 Ω. Use V = IR to find the voltage.
I = 9 A · R = 8 Ω
7. A resistor carries 4 A and has resistance 3 Ω. Use V = IR to find the voltage.
I = 4 A · R = 3 Ω
8. A resistor carries 12 A and has resistance 45 Ω. Use V = IR to find the voltage.
I = 12 A · R = 45 Ω
9. A resistor carries 9 A and has resistance 39 Ω. Use V = IR to find the voltage.
I = 9 A · R = 39 Ω
10. A resistor carries 8 A and has resistance 35 Ω. Use V = IR to find the voltage.
I = 8 A · R = 35 Ω
11. A resistor carries 4 A and has resistance 18 Ω. Use V = IR to find the voltage.
I = 4 A · R = 18 Ω
12. A resistor carries 3 A and has resistance 40 Ω. Use V = IR to find the voltage.
I = 3 A · R = 40 Ω

12 questions · Seed 104732 · 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 4 A and has resistance 24 Ω. Use V = IR to find the voltage.
96 V
V = I × R = 4 × 24 = 96 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 6 A and has resistance 27 Ω. Use V = IR to find the voltage.
162 V
V = I × R = 6 × 27 = 162 V.
4. A resistor carries 11 A and has resistance 41 Ω. Use V = IR to find the voltage.
451 V
V = I × R = 11 × 41 = 451 V.
5. A resistor carries 6 A and has resistance 17 Ω. Use V = IR to find the voltage.
102 V
V = I × R = 6 × 17 = 102 V.
6. A resistor carries 9 A and has resistance 8 Ω. Use V = IR to find the voltage.
72 V
V = I × R = 9 × 8 = 72 V.
7. A resistor carries 4 A and has resistance 3 Ω. Use V = IR to find the voltage.
12 V
V = I × R = 4 × 3 = 12 V.
8. A resistor carries 12 A and has resistance 45 Ω. Use V = IR to find the voltage.
540 V
V = I × R = 12 × 45 = 540 V.
9. A resistor carries 9 A and has resistance 39 Ω. Use V = IR to find the voltage.
351 V
V = I × R = 9 × 39 = 351 V.
10. A resistor carries 8 A and has resistance 35 Ω. Use V = IR to find the voltage.
280 V
V = I × R = 8 × 35 = 280 V.
11. A resistor carries 4 A and has resistance 18 Ω. Use V = IR to find the voltage.
72 V
V = I × R = 4 × 18 = 72 V.
12. A resistor carries 3 A and has resistance 40 Ω. Use V = IR to find the voltage.
120 V
V = I × R = 3 × 40 = 120 V.

12 questions · Seed 104732 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Take your time. Show your thinking.

1. A resistor carries 4 A and has resistance 24 Ω. Use V = IR to find the voltage.
I = 4 A · R = 24 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 6 A and has resistance 27 Ω. Use V = IR to find the voltage.
I = 6 A · R = 27 Ω
4. A resistor carries 11 A and has resistance 41 Ω. Use V = IR to find the voltage.
I = 11 A · R = 41 Ω
5. A resistor carries 6 A and has resistance 17 Ω. Use V = IR to find the voltage.
I = 6 A · R = 17 Ω
6. A resistor carries 9 A and has resistance 8 Ω. Use V = IR to find the voltage.
I = 9 A · R = 8 Ω
7. A resistor carries 4 A and has resistance 3 Ω. Use V = IR to find the voltage.
I = 4 A · R = 3 Ω
8. A resistor carries 12 A and has resistance 45 Ω. Use V = IR to find the voltage.
I = 12 A · R = 45 Ω
9. A resistor carries 9 A and has resistance 39 Ω. Use V = IR to find the voltage.
I = 9 A · R = 39 Ω
10. A resistor carries 8 A and has resistance 35 Ω. Use V = IR to find the voltage.
I = 8 A · R = 35 Ω
11. A resistor carries 4 A and has resistance 18 Ω. Use V = IR to find the voltage.
I = 4 A · R = 18 Ω
12. A resistor carries 3 A and has resistance 40 Ω. Use V = IR to find the voltage.
I = 3 A · R = 40 Ω

12 questions · Seed 104732 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Answers and reasoning. Review before teaching.

1. 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.
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 6 A and has resistance 27 Ω. Use V = IR to find the voltage.
162 V
V = I × R = 6 × 27 = 162 V.
4. A resistor carries 11 A and has resistance 41 Ω. Use V = IR to find the voltage.
451 V
V = I × R = 11 × 41 = 451 V.
5. A resistor carries 6 A and has resistance 17 Ω. Use V = IR to find the voltage.
102 V
V = I × R = 6 × 17 = 102 V.
6. A resistor carries 9 A and has resistance 8 Ω. Use V = IR to find the voltage.
72 V
V = I × R = 9 × 8 = 72 V.
7. A resistor carries 4 A and has resistance 3 Ω. Use V = IR to find the voltage.
12 V
V = I × R = 4 × 3 = 12 V.
8. A resistor carries 12 A and has resistance 45 Ω. Use V = IR to find the voltage.
540 V
V = I × R = 12 × 45 = 540 V.
9. A resistor carries 9 A and has resistance 39 Ω. Use V = IR to find the voltage.
351 V
V = I × R = 9 × 39 = 351 V.
10. A resistor carries 8 A and has resistance 35 Ω. Use V = IR to find the voltage.
280 V
V = I × R = 8 × 35 = 280 V.
11. A resistor carries 4 A and has resistance 18 Ω. Use V = IR to find the voltage.
72 V
V = I × R = 4 × 18 = 72 V.
12. A resistor carries 3 A and has resistance 40 Ω. Use V = IR to find the voltage.
120 V
V = I × R = 3 × 40 = 120 V.

12 questions · Seed 104732 · Age guidance, not curriculum certification