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In Which of the Following Case the Bulb Will Glow : - Physics

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Question

In which of the following case the bulb will glow :

Solution

  1.  Only one terminal of a cell is joined with a metal wire to one terminal of the bulb.
  2.  Both terminals of the bulb are joined with two metal wires to one terminal of the cell.
  3.  One terminal of the cell is joined to one terminal of the bulb and other terminal of the cell to the other terminal of the bulb.
    Answer:
    The bulb will glow in (3) case i.e.
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