If a bulb is lit after rejoining the parts of a broken filament, what change will occur in the intensity of the light from the lamp? What will be the change in the power of a circuit?
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Answer:
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The weld is a weak point and the current drawn by the bulb has increased a bit due to the shortening of the filament. Both of these effects will lead to a short lifetime.
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Answer:If you put the bulb in a small lamp you will be able to twist it around properly to let the two broken ends bump into each other. The ends will spot weld themselves together and relight the bulb.
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