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Electric Currnt: Comparision of Brightness of bulbs.

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Please answer question 7.4 from the attached document.

(See attached file for full problem description)

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Solution Summary

A comparison of brightness of bulbs is provided for electric currents.

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Please see the attached file.

As no numerical data is given we will consider that all the batteries are identical with emf V and all the bulbs are identical with filament resistance ...

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