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ScienceAges 16-18

Electric charge & current (Q = It)

Use Q = It to calculate electric charge in coulombs from steady current and time. Review suitability for your learners before teaching.

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Age band:Ages 13-15Ages 16-18

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Worksheet StudioPractice pack · Ages 16-18

Electric charge & current (Q = It)

Take your time. Show your thinking.

  1. 1. A steady current of 3 A flows through a lamp for 47 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 3 A · t = 47 s

  2. 2. A steady current of 10 A flows through a lamp for 113 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 113 s

  3. 3. A steady current of 15 A flows through a lamp for 104 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 104 s

  4. 4. A steady current of 11 A flows through a lamp for 24 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 24 s

  5. 5. A steady current of 9 A flows through a lamp for 82 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 9 A · t = 82 s

  6. 6. A steady current of 2 A flows through a lamp for 64 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 64 s

  7. 7. A steady current of 1 A flows through a lamp for 89 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 89 s

  8. 8. A steady current of 13 A flows through a lamp for 30 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 30 s

  9. 9. A steady current of 11 A flows through a lamp for 52 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 52 s

  10. 10. A steady current of 14 A flows through a lamp for 81 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 81 s

  11. 11. A steady current of 2 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 26 s

  12. 12. A steady current of 7 A flows through a lamp for 16 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 7 A · t = 16 s
12 questions · Seed 47 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 16-18

Electric charge & current (Q = It)

Answers and reasoning. Review before teaching.

  1. 1. A steady current of 3 A flows through a lamp for 47 s. Calculate the total electric charge transferred using Q = It.

    141 C

    Charge Q = current × time = 3 A × 47 s = 141 C.

  2. 2. A steady current of 10 A flows through a lamp for 113 s. Calculate the total electric charge transferred using Q = It.

    1130 C

    Charge Q = current × time = 10 A × 113 s = 1130 C.

  3. 3. A steady current of 15 A flows through a lamp for 104 s. Calculate the total electric charge transferred using Q = It.

    1560 C

    Charge Q = current × time = 15 A × 104 s = 1560 C.

  4. 4. A steady current of 11 A flows through a lamp for 24 s. Calculate the total electric charge transferred using Q = It.

    264 C

    Charge Q = current × time = 11 A × 24 s = 264 C.

  5. 5. A steady current of 9 A flows through a lamp for 82 s. Calculate the total electric charge transferred using Q = It.

    738 C

    Charge Q = current × time = 9 A × 82 s = 738 C.

  6. 6. A steady current of 2 A flows through a lamp for 64 s. Calculate the total electric charge transferred using Q = It.

    128 C

    Charge Q = current × time = 2 A × 64 s = 128 C.

  7. 7. A steady current of 1 A flows through a lamp for 89 s. Calculate the total electric charge transferred using Q = It.

    89 C

    Charge Q = current × time = 1 A × 89 s = 89 C.

  8. 8. A steady current of 13 A flows through a lamp for 30 s. Calculate the total electric charge transferred using Q = It.

    390 C

    Charge Q = current × time = 13 A × 30 s = 390 C.

  9. 9. A steady current of 11 A flows through a lamp for 52 s. Calculate the total electric charge transferred using Q = It.

    572 C

    Charge Q = current × time = 11 A × 52 s = 572 C.

  10. 10. A steady current of 14 A flows through a lamp for 81 s. Calculate the total electric charge transferred using Q = It.

    1134 C

    Charge Q = current × time = 14 A × 81 s = 1134 C.

  11. 11. A steady current of 2 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    52 C

    Charge Q = current × time = 2 A × 26 s = 52 C.

  12. 12. A steady current of 7 A flows through a lamp for 16 s. Calculate the total electric charge transferred using Q = It.

    112 C

    Charge Q = current × time = 7 A × 16 s = 112 C.

12 questions · Seed 47 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 16-18

Electric charge & current (Q = It)

Take your time. Show your thinking.

  1. 1. A steady current of 3 A flows through a lamp for 47 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 3 A · t = 47 s

  2. 2. A steady current of 10 A flows through a lamp for 113 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 113 s

  3. 3. A steady current of 15 A flows through a lamp for 104 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 104 s

  4. 4. A steady current of 11 A flows through a lamp for 24 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 24 s

  5. 5. A steady current of 9 A flows through a lamp for 82 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 9 A · t = 82 s

  6. 6. A steady current of 2 A flows through a lamp for 64 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 64 s

  7. 7. A steady current of 1 A flows through a lamp for 89 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 89 s

  8. 8. A steady current of 13 A flows through a lamp for 30 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 30 s

  9. 9. A steady current of 11 A flows through a lamp for 52 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 11 A · t = 52 s

  10. 10. A steady current of 14 A flows through a lamp for 81 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 81 s

  11. 11. A steady current of 2 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 26 s

  12. 12. A steady current of 7 A flows through a lamp for 16 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 7 A · t = 16 s
12 questions · Seed 47 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 16-18

Electric charge & current (Q = It)

Answers and reasoning. Review before teaching.

  1. 1. A steady current of 3 A flows through a lamp for 47 s. Calculate the total electric charge transferred using Q = It.

    141 C

    Charge Q = current × time = 3 A × 47 s = 141 C.

  2. 2. A steady current of 10 A flows through a lamp for 113 s. Calculate the total electric charge transferred using Q = It.

    1130 C

    Charge Q = current × time = 10 A × 113 s = 1130 C.

  3. 3. A steady current of 15 A flows through a lamp for 104 s. Calculate the total electric charge transferred using Q = It.

    1560 C

    Charge Q = current × time = 15 A × 104 s = 1560 C.

  4. 4. A steady current of 11 A flows through a lamp for 24 s. Calculate the total electric charge transferred using Q = It.

    264 C

    Charge Q = current × time = 11 A × 24 s = 264 C.

  5. 5. A steady current of 9 A flows through a lamp for 82 s. Calculate the total electric charge transferred using Q = It.

    738 C

    Charge Q = current × time = 9 A × 82 s = 738 C.

  6. 6. A steady current of 2 A flows through a lamp for 64 s. Calculate the total electric charge transferred using Q = It.

    128 C

    Charge Q = current × time = 2 A × 64 s = 128 C.

  7. 7. A steady current of 1 A flows through a lamp for 89 s. Calculate the total electric charge transferred using Q = It.

    89 C

    Charge Q = current × time = 1 A × 89 s = 89 C.

  8. 8. A steady current of 13 A flows through a lamp for 30 s. Calculate the total electric charge transferred using Q = It.

    390 C

    Charge Q = current × time = 13 A × 30 s = 390 C.

  9. 9. A steady current of 11 A flows through a lamp for 52 s. Calculate the total electric charge transferred using Q = It.

    572 C

    Charge Q = current × time = 11 A × 52 s = 572 C.

  10. 10. A steady current of 14 A flows through a lamp for 81 s. Calculate the total electric charge transferred using Q = It.

    1134 C

    Charge Q = current × time = 14 A × 81 s = 1134 C.

  11. 11. A steady current of 2 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    52 C

    Charge Q = current × time = 2 A × 26 s = 52 C.

  12. 12. A steady current of 7 A flows through a lamp for 16 s. Calculate the total electric charge transferred using Q = It.

    112 C

    Charge Q = current × time = 7 A × 16 s = 112 C.

12 questions · Seed 47 · Age guidance, not curriculum certification