When does a bulb light up brighter and dimmer?
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When does a bulb light up brighter and dimmer?
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Answer
What causes a light bulb to be brighter?
Increasing the voltage increases the brightness of the bulb. When a bulb in a series circuit is unscrewed all bulbs in the circuit go out. Increasing the number of bulbs in a series circuit decreases the brightness of the bulbs. In a series circuit, the voltage is equally distributed among all of the bulbs.
Explanation
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