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23 January, 00:25

Two students suggest different functions for the battery plays a flashlight.

Student A: "The battery supplies the charge which allows the light bulb to light. When the battery no longer works, it is because it has run out of charge."

Student B: "The battery pumps the charge around the circuit. The charge itself comes from the conducting elements of the circuit; the battery supplies the energy to pump this charge. When the battery no longer works, it is because the energy-producing chemicals have been consumed."

(a) Which student (A or B) do you agree with?

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Answers (2)
  1. 23 January, 00:29
    0
    Student b

    Explanation:

    Because, Battery pumps the charges around the circuit. Here, charges are the free electrons. And this charges are already present in the conductor. When we connect this conductor with the battery - It set up an electric field and The diffrence between the potential between the ends of the wire pushes this free charges to move in perticular direction. (This is called electric energy)

    This electric energy is converted by chemical reactions in the battery. When the battery is dead - It means that the chemical energy producing chemicals has been consumed. thereafter there will be no more chemical reactions takes place to produce electric energy. Hence we say that the battery is dead.
  2. 23 January, 00:40
    0
    Student B is correct

    Explanation:

    The battery acts like a pump to drive the electric charge. The electric charge comes from the conducting material but the battery provides a potential difference or a gradient of flow for this charge which is necessary for the movement of the charge along the conductor.
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