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10th Class Science Sample Paper Science Olympiad Model Test Paper-21

  • question_answer
    Electric supply of a house is through 15 A fuse. When a 2000 W heater is used in this house, how many 100 W bulbs can be used simultaneously? The supply is at 220 V and the heater and the bulbs are rated for 220 V.

    A) 7

    B) 9

    C) 11

    D)  13

    E)  None of these

    Correct Answer: D

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