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    4. how do car headlights work
    how do car headlights work

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    0  Views: 450 Answers: 1 Posted: 14 years ago
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      When you turn on the switch, electrical current passes through the filament in the bulb causing it to shine. There is reflective material inside the lens to cause the light to shine outwards, sort of like a flashlight.
      14 years ago. Rating: 1
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