If the current through an electrical machine running on direct current is 15 A and the machine runs for 10 minutes, the charge that passes through the machine during this time is:

  1. A. 1.50 C
  2. B. 150 C
  3. C. 900 C
  4. D. 9000 C ✓

Correct Answer: D. 9000 C

Explanation

Charge (Q) = Current (I) × Time (t). Here, I = 15 A and t = 10 minutes = 600 seconds. Thus, Q = 15 × 600 = 9000 C.

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