Small practice. Bright discoveries.Explore the free starter collection
worksheetstudio.
Sign in
Back to worksheets
ScienceAges 16-18

Electrical power (P = VI)

Use P = VI to calculate electrical power in watts from potential difference and current. Review suitability for your learners before teaching.

New variationTry interactive challengeBrowse templates
Age band:Ages 13-15Ages 16-18

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 16-18

Electrical power (P = VI)

Take your time. Show your thinking.

  1. 1. A circuit component operates at 30 V with a current of 13 A. Use P = VI to calculate the electrical power.

    +−R
    V = 30 V · I = 13 A

  2. 2. A circuit component operates at 41 V with a current of 14 A. Use P = VI to calculate the electrical power.

    +−R
    V = 41 V · I = 14 A

  3. 3. A circuit component operates at 11 V with a current of 3 A. Use P = VI to calculate the electrical power.

    +−R
    V = 11 V · I = 3 A

  4. 4. A circuit component operates at 34 V with a current of 10 A. Use P = VI to calculate the electrical power.

    +−R
    V = 34 V · I = 10 A

  5. 5. A circuit component operates at 21 V with a current of 7 A. Use P = VI to calculate the electrical power.

    +−R
    V = 21 V · I = 7 A

  6. 6. A circuit component operates at 27 V with a current of 4 A. Use P = VI to calculate the electrical power.

    +−R
    V = 27 V · I = 4 A

  7. 7. A circuit component operates at 18 V with a current of 9 A. Use P = VI to calculate the electrical power.

    +−R
    V = 18 V · I = 9 A

  8. 8. A circuit component operates at 17 V with a current of 8 A. Use P = VI to calculate the electrical power.

    +−R
    V = 17 V · I = 8 A

  9. 9. A circuit component operates at 46 V with a current of 5 A. Use P = VI to calculate the electrical power.

    +−R
    V = 46 V · I = 5 A

  10. 10. A circuit component operates at 48 V with a current of 8 A. Use P = VI to calculate the electrical power.

    +−R
    V = 48 V · I = 8 A

  11. 11. A circuit component operates at 43 V with a current of 6 A. Use P = VI to calculate the electrical power.

    +−R
    V = 43 V · I = 6 A

  12. 12. A circuit component operates at 37 V with a current of 11 A. Use P = VI to calculate the electrical power.

    +−R
    V = 37 V · I = 11 A
12 questions · Seed 104730 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 16-18

Electrical power (P = VI)

Answers and reasoning. Review before teaching.

  1. 1. A circuit component operates at 30 V with a current of 13 A. Use P = VI to calculate the electrical power.

    390 W

    Electrical power P = V × I = 30 × 13 = 390 W.

  2. 2. A circuit component operates at 41 V with a current of 14 A. Use P = VI to calculate the electrical power.

    574 W

    Electrical power P = V × I = 41 × 14 = 574 W.

  3. 3. A circuit component operates at 11 V with a current of 3 A. Use P = VI to calculate the electrical power.

    33 W

    Electrical power P = V × I = 11 × 3 = 33 W.

  4. 4. A circuit component operates at 34 V with a current of 10 A. Use P = VI to calculate the electrical power.

    340 W

    Electrical power P = V × I = 34 × 10 = 340 W.

  5. 5. A circuit component operates at 21 V with a current of 7 A. Use P = VI to calculate the electrical power.

    147 W

    Electrical power P = V × I = 21 × 7 = 147 W.

  6. 6. A circuit component operates at 27 V with a current of 4 A. Use P = VI to calculate the electrical power.

    108 W

    Electrical power P = V × I = 27 × 4 = 108 W.

  7. 7. A circuit component operates at 18 V with a current of 9 A. Use P = VI to calculate the electrical power.

    162 W

    Electrical power P = V × I = 18 × 9 = 162 W.

  8. 8. A circuit component operates at 17 V with a current of 8 A. Use P = VI to calculate the electrical power.

    136 W

    Electrical power P = V × I = 17 × 8 = 136 W.

  9. 9. A circuit component operates at 46 V with a current of 5 A. Use P = VI to calculate the electrical power.

    230 W

    Electrical power P = V × I = 46 × 5 = 230 W.

  10. 10. A circuit component operates at 48 V with a current of 8 A. Use P = VI to calculate the electrical power.

    384 W

    Electrical power P = V × I = 48 × 8 = 384 W.

  11. 11. A circuit component operates at 43 V with a current of 6 A. Use P = VI to calculate the electrical power.

    258 W

    Electrical power P = V × I = 43 × 6 = 258 W.

  12. 12. A circuit component operates at 37 V with a current of 11 A. Use P = VI to calculate the electrical power.

    407 W

    Electrical power P = V × I = 37 × 11 = 407 W.

12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 16-18

Electrical power (P = VI)

Take your time. Show your thinking.

  1. 1. A circuit component operates at 30 V with a current of 13 A. Use P = VI to calculate the electrical power.

    +−R
    V = 30 V · I = 13 A

  2. 2. A circuit component operates at 41 V with a current of 14 A. Use P = VI to calculate the electrical power.

    +−R
    V = 41 V · I = 14 A

  3. 3. A circuit component operates at 11 V with a current of 3 A. Use P = VI to calculate the electrical power.

    +−R
    V = 11 V · I = 3 A

  4. 4. A circuit component operates at 34 V with a current of 10 A. Use P = VI to calculate the electrical power.

    +−R
    V = 34 V · I = 10 A

  5. 5. A circuit component operates at 21 V with a current of 7 A. Use P = VI to calculate the electrical power.

    +−R
    V = 21 V · I = 7 A

  6. 6. A circuit component operates at 27 V with a current of 4 A. Use P = VI to calculate the electrical power.

    +−R
    V = 27 V · I = 4 A

  7. 7. A circuit component operates at 18 V with a current of 9 A. Use P = VI to calculate the electrical power.

    +−R
    V = 18 V · I = 9 A

  8. 8. A circuit component operates at 17 V with a current of 8 A. Use P = VI to calculate the electrical power.

    +−R
    V = 17 V · I = 8 A

  9. 9. A circuit component operates at 46 V with a current of 5 A. Use P = VI to calculate the electrical power.

    +−R
    V = 46 V · I = 5 A

  10. 10. A circuit component operates at 48 V with a current of 8 A. Use P = VI to calculate the electrical power.

    +−R
    V = 48 V · I = 8 A

  11. 11. A circuit component operates at 43 V with a current of 6 A. Use P = VI to calculate the electrical power.

    +−R
    V = 43 V · I = 6 A

  12. 12. A circuit component operates at 37 V with a current of 11 A. Use P = VI to calculate the electrical power.

    +−R
    V = 37 V · I = 11 A
12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 16-18

Electrical power (P = VI)

Answers and reasoning. Review before teaching.

  1. 1. A circuit component operates at 30 V with a current of 13 A. Use P = VI to calculate the electrical power.

    390 W

    Electrical power P = V × I = 30 × 13 = 390 W.

  2. 2. A circuit component operates at 41 V with a current of 14 A. Use P = VI to calculate the electrical power.

    574 W

    Electrical power P = V × I = 41 × 14 = 574 W.

  3. 3. A circuit component operates at 11 V with a current of 3 A. Use P = VI to calculate the electrical power.

    33 W

    Electrical power P = V × I = 11 × 3 = 33 W.

  4. 4. A circuit component operates at 34 V with a current of 10 A. Use P = VI to calculate the electrical power.

    340 W

    Electrical power P = V × I = 34 × 10 = 340 W.

  5. 5. A circuit component operates at 21 V with a current of 7 A. Use P = VI to calculate the electrical power.

    147 W

    Electrical power P = V × I = 21 × 7 = 147 W.

  6. 6. A circuit component operates at 27 V with a current of 4 A. Use P = VI to calculate the electrical power.

    108 W

    Electrical power P = V × I = 27 × 4 = 108 W.

  7. 7. A circuit component operates at 18 V with a current of 9 A. Use P = VI to calculate the electrical power.

    162 W

    Electrical power P = V × I = 18 × 9 = 162 W.

  8. 8. A circuit component operates at 17 V with a current of 8 A. Use P = VI to calculate the electrical power.

    136 W

    Electrical power P = V × I = 17 × 8 = 136 W.

  9. 9. A circuit component operates at 46 V with a current of 5 A. Use P = VI to calculate the electrical power.

    230 W

    Electrical power P = V × I = 46 × 5 = 230 W.

  10. 10. A circuit component operates at 48 V with a current of 8 A. Use P = VI to calculate the electrical power.

    384 W

    Electrical power P = V × I = 48 × 8 = 384 W.

  11. 11. A circuit component operates at 43 V with a current of 6 A. Use P = VI to calculate the electrical power.

    258 W

    Electrical power P = V × I = 43 × 6 = 258 W.

  12. 12. A circuit component operates at 37 V with a current of 11 A. Use P = VI to calculate the electrical power.

    407 W

    Electrical power P = V × I = 37 × 11 = 407 W.

12 questions · Seed 104730 · Age guidance, not curriculum certification