A series circuit contains four light bulbs. The switch is opened and one of the bulbs is removed, but not replaced. Then the switch is closed again. What would you expect to see?

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5 points
The three remaining light bulbs will be on.
None of the remaining light bulbs will be on.
Only the light bulb closest to the switch will be on.
All three remaining light bulbs will be brighter than before.

The correct answer is: Only the light bulb closest to the switch will be on.