7th Class Science Electric Current and Its Effects Question Bank Electric Current and Its Effects

  • question_answer
    Marking on a bulb is 60 W, 220 V. What does it signify?

    A) The bulb is connected across the 220 volts, 60 joules of energy is consumed for every second.

    B) The bulb is connected across 220 volts, 60 joules of energy is released.

    C) 60 unit of current will flow in the bulb.

    D) 220 unit of current will flow in the bulb.

    Correct Answer: A

    Solution :

    60 W, 220 V means the power of the bulb is 60W i.e., 60 joules of electrical energy is consumed in one second, if it is given a potential difference of 220 V.


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