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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 12 A flows through a lamp for 23 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 23 s

  2. 2. A steady current of 6 A flows through a lamp for 33 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 6 A · t = 33 s

  3. 3. A steady current of 1 A flows through a lamp for 42 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 42 s

  4. 4. A steady current of 12 A flows through a lamp for 92 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 92 s

  5. 5. A steady current of 4 A flows through a lamp for 111 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 111 s

  6. 6. A steady current of 9 A flows through a lamp for 7 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 9 A · t = 7 s

  7. 7. 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

  8. 8. A steady current of 10 A flows through a lamp for 60 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 60 s

  9. 9. A steady current of 10 A flows through a lamp for 116 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 116 s

  10. 10. A steady current of 1 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 17 s

  11. 11. A steady current of 10 A flows through a lamp for 84 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 84 s

  12. 12. A steady current of 14 A flows through a lamp for 109 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 109 s
12 questions · Seed 104737 · 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 12 A flows through a lamp for 23 s. Calculate the total electric charge transferred using Q = It.

    276 C

    Charge Q = current × time = 12 A × 23 s = 276 C.

  2. 2. A steady current of 6 A flows through a lamp for 33 s. Calculate the total electric charge transferred using Q = It.

    198 C

    Charge Q = current × time = 6 A × 33 s = 198 C.

  3. 3. A steady current of 1 A flows through a lamp for 42 s. Calculate the total electric charge transferred using Q = It.

    42 C

    Charge Q = current × time = 1 A × 42 s = 42 C.

  4. 4. A steady current of 12 A flows through a lamp for 92 s. Calculate the total electric charge transferred using Q = It.

    1104 C

    Charge Q = current × time = 12 A × 92 s = 1104 C.

  5. 5. A steady current of 4 A flows through a lamp for 111 s. Calculate the total electric charge transferred using Q = It.

    444 C

    Charge Q = current × time = 4 A × 111 s = 444 C.

  6. 6. A steady current of 9 A flows through a lamp for 7 s. Calculate the total electric charge transferred using Q = It.

    63 C

    Charge Q = current × time = 9 A × 7 s = 63 C.

  7. 7. 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.

  8. 8. A steady current of 10 A flows through a lamp for 60 s. Calculate the total electric charge transferred using Q = It.

    600 C

    Charge Q = current × time = 10 A × 60 s = 600 C.

  9. 9. A steady current of 10 A flows through a lamp for 116 s. Calculate the total electric charge transferred using Q = It.

    1160 C

    Charge Q = current × time = 10 A × 116 s = 1160 C.

  10. 10. A steady current of 1 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    17 C

    Charge Q = current × time = 1 A × 17 s = 17 C.

  11. 11. A steady current of 10 A flows through a lamp for 84 s. Calculate the total electric charge transferred using Q = It.

    840 C

    Charge Q = current × time = 10 A × 84 s = 840 C.

  12. 12. A steady current of 14 A flows through a lamp for 109 s. Calculate the total electric charge transferred using Q = It.

    1526 C

    Charge Q = current × time = 14 A × 109 s = 1526 C.

12 questions · Seed 104737 · 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 12 A flows through a lamp for 23 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 23 s

  2. 2. A steady current of 6 A flows through a lamp for 33 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 6 A · t = 33 s

  3. 3. A steady current of 1 A flows through a lamp for 42 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 42 s

  4. 4. A steady current of 12 A flows through a lamp for 92 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 12 A · t = 92 s

  5. 5. A steady current of 4 A flows through a lamp for 111 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 4 A · t = 111 s

  6. 6. A steady current of 9 A flows through a lamp for 7 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 9 A · t = 7 s

  7. 7. 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

  8. 8. A steady current of 10 A flows through a lamp for 60 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 60 s

  9. 9. A steady current of 10 A flows through a lamp for 116 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 116 s

  10. 10. A steady current of 1 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 1 A · t = 17 s

  11. 11. A steady current of 10 A flows through a lamp for 84 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 10 A · t = 84 s

  12. 12. A steady current of 14 A flows through a lamp for 109 s. Calculate the total electric charge transferred using Q = It.

    +−R
    I = 14 A · t = 109 s
12 questions · Seed 104737 · 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 12 A flows through a lamp for 23 s. Calculate the total electric charge transferred using Q = It.

    276 C

    Charge Q = current × time = 12 A × 23 s = 276 C.

  2. 2. A steady current of 6 A flows through a lamp for 33 s. Calculate the total electric charge transferred using Q = It.

    198 C

    Charge Q = current × time = 6 A × 33 s = 198 C.

  3. 3. A steady current of 1 A flows through a lamp for 42 s. Calculate the total electric charge transferred using Q = It.

    42 C

    Charge Q = current × time = 1 A × 42 s = 42 C.

  4. 4. A steady current of 12 A flows through a lamp for 92 s. Calculate the total electric charge transferred using Q = It.

    1104 C

    Charge Q = current × time = 12 A × 92 s = 1104 C.

  5. 5. A steady current of 4 A flows through a lamp for 111 s. Calculate the total electric charge transferred using Q = It.

    444 C

    Charge Q = current × time = 4 A × 111 s = 444 C.

  6. 6. A steady current of 9 A flows through a lamp for 7 s. Calculate the total electric charge transferred using Q = It.

    63 C

    Charge Q = current × time = 9 A × 7 s = 63 C.

  7. 7. 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.

  8. 8. A steady current of 10 A flows through a lamp for 60 s. Calculate the total electric charge transferred using Q = It.

    600 C

    Charge Q = current × time = 10 A × 60 s = 600 C.

  9. 9. A steady current of 10 A flows through a lamp for 116 s. Calculate the total electric charge transferred using Q = It.

    1160 C

    Charge Q = current × time = 10 A × 116 s = 1160 C.

  10. 10. A steady current of 1 A flows through a lamp for 17 s. Calculate the total electric charge transferred using Q = It.

    17 C

    Charge Q = current × time = 1 A × 17 s = 17 C.

  11. 11. A steady current of 10 A flows through a lamp for 84 s. Calculate the total electric charge transferred using Q = It.

    840 C

    Charge Q = current × time = 10 A × 84 s = 840 C.

  12. 12. A steady current of 14 A flows through a lamp for 109 s. Calculate the total electric charge transferred using Q = It.

    1526 C

    Charge Q = current × time = 14 A × 109 s = 1526 C.

12 questions · Seed 104737 · Age guidance, not curriculum certification