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Question
Which of the following as the electric source would make an electric bulb glow the brightest? Consider all the cells to be identical.
Which of the following as the electric source would make an electric bulb glow the brightest? Consider all the cells to be identical.
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Solution
The correct option is C 3 cells connected in series
In the electric source, the more the number of cells connected in series, the brighter the bulb glows. So 3 cells connected in series would result in more brightness of the bulb than the 2-cell case. On the other hand, adding any number of cells in parallel does not affect the brightness of the bulb. So 4 cells in parallel and 5 cells in parallel would result the same brightness as one cell connected to the bulb. Cells in parallel would last longer as compared to a single cell.
Hence, 3 cells in series would result in the brightest bulb.
In the electric source, the more the number of cells connected in series, the brighter the bulb glows. So 3 cells connected in series would result in more brightness of the bulb than the 2-cell case. On the other hand, adding any number of cells in parallel does not affect the brightness of the bulb. So 4 cells in parallel and 5 cells in parallel would result the same brightness as one cell connected to the bulb. Cells in parallel would last longer as compared to a single cell.
Hence, 3 cells in series would result in the brightest bulb.
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