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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 14 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 26 s

  2. 2. A steady current of 14 A flows through a lamp for 91 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 91 s

  3. 3. A steady current of 2 A flows through a lamp for 46 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 46 s

  4. 4. A steady current of 5 A flows through a lamp for 40 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 40 s

  5. 5. A steady current of 15 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 105 s

  6. 6. A steady current of 2 A flows through a lamp for 14 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 14 s

  7. 7. A steady current of 15 A flows through a lamp for 13 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 13 s

  8. 8. A steady current of 2 A flows through a lamp for 112 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 112 s

  9. 9. A steady current of 13 A flows through a lamp for 22 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 22 s

  10. 10. A steady current of 12 A flows through a lamp for 14 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 14 s

  11. 11. A steady current of 15 A flows through a lamp for 113 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 113 s

  12. 12. A steady current of 2 A flows through a lamp for 38 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 38 s
12 questions · Seed 55 · 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 14 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    364 C

    Charge Q = current × time = 14 A × 26 s = 364 C.

  2. 2. A steady current of 14 A flows through a lamp for 91 s. Calculate the total electric charge transferred using Q = It.

    1274 C

    Charge Q = current × time = 14 A × 91 s = 1274 C.

  3. 3. A steady current of 2 A flows through a lamp for 46 s. Calculate the total electric charge transferred using Q = It.

    92 C

    Charge Q = current × time = 2 A × 46 s = 92 C.

  4. 4. A steady current of 5 A flows through a lamp for 40 s. Calculate the total electric charge transferred using Q = It.

    200 C

    Charge Q = current × time = 5 A × 40 s = 200 C.

  5. 5. A steady current of 15 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    1575 C

    Charge Q = current × time = 15 A × 105 s = 1575 C.

  6. 6. A steady current of 2 A flows through a lamp for 14 s. Calculate the total electric charge transferred using Q = It.

    28 C

    Charge Q = current × time = 2 A × 14 s = 28 C.

  7. 7. A steady current of 15 A flows through a lamp for 13 s. Calculate the total electric charge transferred using Q = It.

    195 C

    Charge Q = current × time = 15 A × 13 s = 195 C.

  8. 8. A steady current of 2 A flows through a lamp for 112 s. Calculate the total electric charge transferred using Q = It.

    224 C

    Charge Q = current × time = 2 A × 112 s = 224 C.

  9. 9. A steady current of 13 A flows through a lamp for 22 s. Calculate the total electric charge transferred using Q = It.

    286 C

    Charge Q = current × time = 13 A × 22 s = 286 C.

  10. 10. A steady current of 12 A flows through a lamp for 14 s. Calculate the total electric charge transferred using Q = It.

    168 C

    Charge Q = current × time = 12 A × 14 s = 168 C.

  11. 11. A steady current of 15 A flows through a lamp for 113 s. Calculate the total electric charge transferred using Q = It.

    1695 C

    Charge Q = current × time = 15 A × 113 s = 1695 C.

  12. 12. A steady current of 2 A flows through a lamp for 38 s. Calculate the total electric charge transferred using Q = It.

    76 C

    Charge Q = current × time = 2 A × 38 s = 76 C.

12 questions · Seed 55 · 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 14 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 26 s

  2. 2. A steady current of 14 A flows through a lamp for 91 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 91 s

  3. 3. A steady current of 2 A flows through a lamp for 46 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 46 s

  4. 4. A steady current of 5 A flows through a lamp for 40 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 5 A · t = 40 s

  5. 5. A steady current of 15 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 105 s

  6. 6. A steady current of 2 A flows through a lamp for 14 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 14 s

  7. 7. A steady current of 15 A flows through a lamp for 13 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 13 s

  8. 8. A steady current of 2 A flows through a lamp for 112 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 112 s

  9. 9. A steady current of 13 A flows through a lamp for 22 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 13 A · t = 22 s

  10. 10. A steady current of 12 A flows through a lamp for 14 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 14 s

  11. 11. A steady current of 15 A flows through a lamp for 113 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 15 A · t = 113 s

  12. 12. A steady current of 2 A flows through a lamp for 38 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 2 A · t = 38 s
12 questions · Seed 55 · 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 14 A flows through a lamp for 26 s. Calculate the total electric charge transferred using Q = It.

    364 C

    Charge Q = current × time = 14 A × 26 s = 364 C.

  2. 2. A steady current of 14 A flows through a lamp for 91 s. Calculate the total electric charge transferred using Q = It.

    1274 C

    Charge Q = current × time = 14 A × 91 s = 1274 C.

  3. 3. A steady current of 2 A flows through a lamp for 46 s. Calculate the total electric charge transferred using Q = It.

    92 C

    Charge Q = current × time = 2 A × 46 s = 92 C.

  4. 4. A steady current of 5 A flows through a lamp for 40 s. Calculate the total electric charge transferred using Q = It.

    200 C

    Charge Q = current × time = 5 A × 40 s = 200 C.

  5. 5. A steady current of 15 A flows through a lamp for 105 s. Calculate the total electric charge transferred using Q = It.

    1575 C

    Charge Q = current × time = 15 A × 105 s = 1575 C.

  6. 6. A steady current of 2 A flows through a lamp for 14 s. Calculate the total electric charge transferred using Q = It.

    28 C

    Charge Q = current × time = 2 A × 14 s = 28 C.

  7. 7. A steady current of 15 A flows through a lamp for 13 s. Calculate the total electric charge transferred using Q = It.

    195 C

    Charge Q = current × time = 15 A × 13 s = 195 C.

  8. 8. A steady current of 2 A flows through a lamp for 112 s. Calculate the total electric charge transferred using Q = It.

    224 C

    Charge Q = current × time = 2 A × 112 s = 224 C.

  9. 9. A steady current of 13 A flows through a lamp for 22 s. Calculate the total electric charge transferred using Q = It.

    286 C

    Charge Q = current × time = 13 A × 22 s = 286 C.

  10. 10. A steady current of 12 A flows through a lamp for 14 s. Calculate the total electric charge transferred using Q = It.

    168 C

    Charge Q = current × time = 12 A × 14 s = 168 C.

  11. 11. A steady current of 15 A flows through a lamp for 113 s. Calculate the total electric charge transferred using Q = It.

    1695 C

    Charge Q = current × time = 15 A × 113 s = 1695 C.

  12. 12. A steady current of 2 A flows through a lamp for 38 s. Calculate the total electric charge transferred using Q = It.

    76 C

    Charge Q = current × time = 2 A × 38 s = 76 C.

12 questions · Seed 55 · Age guidance, not curriculum certification